MiniatureBinoculars.com

My Taylor Optical 7x35 binoculars are a salesman sample or trade show factory cutaway custom machined in a way to show off it’s various internal components.

Having worked in engineering and marketing in a lock manufacturer, gun manufacturer, and also as a manufacturer’s rep, including involvement with trade shows, sales meetings, and distributor meetings: I have been involved in the creation and use of cutaway products to show functioning internal mechanisms. Always rare and produced in small handful quantities, these were a visual way to promote new internal features before the advent of video, and were used as show, sales samples, or as engineering or training tools. Their design was always an engineering/ model shop challenge, and having also worked for a year as a lead machinist, I appreciate the challenge of milling while preserving all functions. I do have a large collection of cutaway padlocks, and collections of cutaway guns, locks, door closers, binoculars, and other cutaway sectioned items, plus clear case prison approved electronics. I personally always find all these clever and interesting.

Leitz Wetzlar WWII Bulgarian Military Cutaway Sectioned 6x30 Bidox Training ot Instructional Binoculars

E Leitz 6x30 Bidox military binoculars cut away or sectioned as training binoculars.
Jumelles militaires 6x30 E. Leitz Wetzlar Bidox decoupees ou sectionnees com jumelles d'ntrainement.
Leitz Bidox 6x30 militarfernglas als traningsfernglas weggeschnitten oder geschnitten.
Binocolo militare E. Leitz Wetzlar Bidox 6x30 tagliato via o sezionato comee binocolo da addestramento.
Leitz militaire verrekijker weggesneden of doorsneden als trainings verrekijker.
Los binoculares militares E. Leitz Wetzlar 6x30 Bidox cortados o seccionados como binoculares entrenmiento.
Leitz 6x30 Bidox militare kikkert kuttet bort eller seksjonert som trenings kikkert.

E. Leitz Wetzlar Bidox 6x30 military binoculars cut away or sectioned as training binoculars.
Jumelles militares E. Leitz Wetzlar Bidox 6x30 decoupees ou sectionnees comme jumelles d'entrainment.
E. Leitz Wetzlar Bidox 6x30 militarfernglas als trainingsfernglas weggeschnitten oder geschnitten.
Binocolo militare E. Leitz Wetzlar Bidox 6x30 tagliato vio o sezionato come binocolo da addestramento.
Los binoculares militares E. Leitz Wetzlar Bidox 6x30 cortados o seccionados como binoculares de entrenamiento.
E. Leitz Wetzlar Bidox 6x30 militara kikare skars bort eller sektioneras som traningskikare.
E. Leitz Wetzlar Bidox 6x30 militaere kikkert kuttet bort eller seksjonert som trenings kikkert.

E. Leitz Wetzlar 6x30 Bidox military binoculars cut away or sectioned as training binoculars.
Jumelles militaires E. Leitz Wetzlar 6x30 decoupees ou sectionnees comme jumelles d'entrainement.
E. Leitz Wetzlar 6x30 Bidox militarfernglas als trainingsfernglas weggeschnitten oder geschnitten.
Binocolo militare E. Leitz Wetzlar 6x30 Bidox tagliato via o sezionato come binocolo da addestramento.
E. Leitz Wetzlar 6x30 Bidox militaire verrekijker weggesneden of doorsneden als trainings verrekijker.
Los binoculares militaires E. leitz Wetzlar 6x30 Bidox cortados o seccionados como binoculares de entrenamiento.
E. Leitz Wetzlar 6x30 Bidox militara kikare skars bort eller sektioneras som traningskikare.
E. Leitz Wetzlar 6x30 Bidox militaere kikkert kuttet bort eller seksjonert som trenings kikkert.

My E. Leitz Wetzlar 6x30 Bidox cutaway sectioned binoculars were obtained from Bulgaria. and were used in the Bulgarian WWII training program of military optical technicians. With WWII military mobilization, no country had enough binoculars or other military optics. Countries with existing binoculars and military and civilian optical manufacturing industries such as the US, UK, Japan, Germany and France expanded them and in many cases established new factories. They also used civilian requisitioned binoculars. Since those countries had no binoculars to spare for export, some other countries like Chile established new military optical industries. Most countries established military binoculars repair programs, and the Bulgarian program used cutaway sectioned binoculars for training technicians. The ocular is in a hand removable state (with one missing), rather than being in it’s normal captured fixation, which is likely for a hands on training creation where people are going to remove parts. The prisms are clearly pencil marked with settings, compatible with training in adjusting prisms, and commonly done in production. Leitz Bidox binoculars were produced from 1927-1953. The serial number of these Bidox binoculars seem to be outside of the normal expected serial number range of Leitz Bidox binoculars (greater) for unknown reasons.

1917-1918 U.S. Navy Bureau of Navigation, U.S. Naval Gun Factory Optical Shop Annex Produced 10x45 Military Binoculars

The U.S. Navy Bureau of Navigation existed from 1862-1942, with activities ranging from charts, navigation research & instruments to Navy personnel management and assignment. The U.S. Naval Gun Factory Optical Shop Annex in Rochester NY was a WWI U.S. government owned manufacturer formed by the Dec 1917 by the U.S. Navy forced seizure of the Crown Optical Co. (a lens and binoculars manufacturer located at 203 State St., Rochester NY). The justification published by the Navy in 1918 was that the Crown Optical Co. had large US military and British military government contracts to produce binoculars, and that by commandeering (nationalizing) the facility, and by turning it into an annex of the Washington Navy Yard, the Navy could take over and force faster fulfillment of those contracts. (See my listing of Crown Optical Co’s UK & US binoculars contracts with my Crown Optical Co British military binoculars below). The Rochester Optical shop annex factory was closed down in 1919, soon after war’s end, and all of it’s equipment and it’s US Navy personnel were sent to building 157 of the Washington Navy Yard. My pattern of 10x45 Navy binoculars would have normally been shipboard equipment for bridge , flag officers, and lookouts.

WWI British Military 6x30 Binoculars Produced Under Contract by Crown Optical Co , Rochester, New York USA, Prior to the 1918 Takeover of That Company by the US Navy Gun factory

The Crown Optical Co. was formed in 1906 as a US lens and binoculars maker, and had WWI British military contracts for binoculars including #B750-579W of 7/15/16 ($350,000) and B1264-1015W of 5/14/17 ($350,000), and US military contracts for binoculars including a 4/22/17 contract to the US Navy for 1,000 10 power binoculars which was probably the contract for the binoculars above ($110,000), and #1573 of 8/21/17 ($750,000). According to the U.S. Navy Dept of Ordnance publication, the Crown Optical company was commandeered by the Navy Dept on Dec 15, 1917 to become the U.S. Naval Gun Factory Optical Shop Annex. If you issue a contract for nearly $16 million (2021 dollars) and 3 months later seize the co. and don’t have to pay ...is that a planned fiscal scheme??? My Crown Optical Co 6x30 binoculars #9518 carry UK military broad arrow property marks, and facing briad arrow disposal mark, and were presumably from either the 1916 or 1917 UK contracts. These have external prism collimation screws (this pair needed collimation). Obtained in the UK.

1918 US Navy Bureau of Navigation U.S. Navy Gun Factory 10x45 Military Binoculars.

Pull Out Objective shields

Wheel for yellow ocular filters

Serial #4152

1916 1917Crown Optical Co. 6x30 British Military binoculars.
1916 1917 Crown Optical Co. 6x30 jumelles militaires de larmee Britannique.
1916 1917 Crown Optical Co. 6x30 militarfernglas der Britischen armee.
1916 1917 Crown Optical Co. 6x30 binoculares militares del ejercito Britanico.
1916 1917 Crown Optical Co. 6x30 Brittisk Arme militar kikare.
1916 1917 Crown Optical Co. 6x30 binocolo militare dell'escercity Britannico.
1916 1917 Crown Optical Co. 6x30 Britse militaire verrekijker.

Facing Broad arrow British military disposal mark

Broad arrow British property

mark

1918 U.S. Army Signal Corps 6x30 Military Binoculars produced by the U.S. Naval Gun Factory Optical Shop Annex Rochester NY

In WWI the US Army Signal Corps still used forms of visual signaling such as aerial telegraphy (wig wag flag signaling shown right) and heliographs (mirror based sun flash signaling). So they issued a lot of binoculars to their troops, such as my 6x30 binoculars with ocular filters manufactured by the US Naval Gun Factory Optical Shop Annex in Rochester NY in 1918.

Goerz WWII Bulgarian Marked Military Cutaway\ Sectioned 6x30 Training/ Instructional Binoculars, Гьорц 6x30 учебен

Carl Zeiss WWII Bulgarian Marked Military Cutaway Sectioned 8x24 Training or Instructional Binoculars Цейс 8x24 учебен

My Carl Zeiss 8x24 cutaway sectioned binoculars from Bulgaria. were used in the Bulgarian WWII training program of military optical technicians. These are marked in Bulgarian Цейс ( Zeiss) and учебен ( training or instructional)

My Goerz 6x30 cutaway sectioned binoculars were obtained from Bulgaria. and were used in the Bulgarian WWII training program of military optical technicians. These are marked in Bulgarian Гьорц ( Goerz) and учебен ( training or instructional)

Goerz WWII Bulgarian Marked Military Cutaway Sectioned 8x26 Training/ Instructional Binoculars, Гьорц 8x26 учебен

Busch Solluxon WWII Bulgarian Marked Military Cutaway Sectioned 6x30 Training or Instructional Binoculars

My Busch Solluxon 6x30 cutaway sectioned binoculars were obtained from Bulgaria. and were used in the Bulgarian WWII training program of military optical technicians. In addition to the Busch factory markings these are marked in Bulgarian учебен ( training or instructional)

Goerz 6x30 military binoculars cut away or sectioned as training binoculars.
Jumelles militaires Goerz 6x30 decoupees ou sectionnees comme jumelles d'entrainement.
Goerz 6x30 militarfernglas als trainingsfernglas weggeschnitten oder geschnitten.
Binocolo militare Goerz 6x30 tagliato via o sezionato come binocolo da addestramento.
Goerz 6x30 militaire verrelkijker weggesneden of doorsneden als trainings verrekijker.
Los binoculares militares goerz 6x30 cortados o seccionados como binoculares de entrenamiento.
Goerz 6x30 militara kikare skars bort eller sektioneras som traningskikare.
Goerz 6x30 militaere kikkert kuttet bort eller seksjonert som trenings kikkert.

Goerz 6x30 military binoculars cut away or sectioned as training binoculars.
Jumelles militaires Goerz 6x30 decoupees ou sectionees comme jumelles d'entrainement.
Goerz militarfernglas 6x30 als trainingsfernglas weggeschnitten oder geschnitten.
Binocolo militare Goerz 6x30 tagliato via o sezionato come binocolo da addestramento.
Goerz 6x30 militaire verrekijker weggesneden of doorsneden als trainings verrekijker.
Los binoculares militares Goerz 6x30 cortados o seccionados como binoculares de entrenamiento.
Goerz 6x30 militara kikare skars bort eller sektioneras som traningskikare.
Goerz 6x30 militaere kikkert kuttet bort eller seksjonert som trenings kikkert.

Carl Zeiss 8x24 military binoculars cut away or sectioned as training binoculoars.
Jumelles militaires Carl Zeiss 8x24 decoupees ou sectionnees comme jumelles d'entrainement.
Zeiss 8x24 militarfernglas als trainingsfernglas weggeschnitten oder geschnitten.
Binocolo militare Carl Zeiss 8x24 tagliato via o sesezionato come binocolo da addestramento.
Zeiss 8x militaire verrekijker weggesneden of doorsneden als trainings verrekijker.
Los binoculares militares Carl Zeiss 8x24 cortados o seccionados como binoculares de entrenamiento.
Zeiss militaere kikkert kuttet bort beller seksjonert trenings kikkert.

Carl Zeiss military 8x24 military binoculars cut away or sectioned as training binoculars.
Jumelles militaires Carl Zeiss 8x24 decoupees ou sectionnees coe jumelles d'entrainment.
Carl Zeiss militar8x24 fernglas als trainingsfernglas weggeschnitten oder geschnitten.
Binocolo militare Carl Zeiss tagliato via o sezionato come binocolo da addeestramento.
Carl Zeiss militaire verrekijker 8x weggesneden of doorsneden als trainings verrekijker.
Los binoculares militares Carl Zeiss 8x24 cortados o secceionados como binoculares de entrenamiento.
Carl Zeiss militara 8x24 kikar skars bort eller sektioneras som traningskikare.
Carl Zeiss militaere 8x24 kikkert kuttet bord eller seksjonert som trnings kikkert.

Carl Zeiss 8x24 military binoculars cut away or sectioned as training binoculars.
Jumelles militaires Carl Zeiss 8x24 decoupees ou sectionnees comme jumelles d'entrainement.
Carl Zeiss militarfernglas als trainingfernglas weggeschnitten oder geschnitten.
Binocolo militare Carl Zeiss tagliato via o sezionato come binocolo da addestramento.
Carl Zeiss militaire verrekijker weggesneden of doorsneden als trainings verrekijker.
Los binoculares militares Carl Zeiss cortados o seccionados como binoculares de entrenamientos.
Carl Zeiss militara kikare skars bort eller sektioneras som traningskikare.
Carl Zeiss militaere kikkert kuttet bort eller seksjonert so trenings kikkert.

Goerz 8x26 military binoculars cut away or sectioned as training binoculars.
Jumelles militaires Goerz 8x26 decoupees ou sectionnees comme jumelles
d'entrainment.
Goerz 8x26 militarfernglas als trainingsfernglas weggeschnitten oder geschnitten.
Binocolo militaire Goerz 8x26 tagliato via o sezionato come binocolo da addestramento.
Goerz 8x26 militaire verrekijker weggesneden of doorneden als trainings verrekijker.
Los binoculares militares Goerz 8x26 cortados o seccionados como binoculares de entrenamiento.
Goerz 8x26 militara kikare skars bort eller sektioneras som traningskikare.
Goerz 8x26 militaere kikkert kuttet bort eller seksjonert som tremings kikkert.

Busch Solluxon 6x30 military binoculars cut away or sectioned as training binoculars.
Jumelles militaires Busch Solluxon6x30 decoupees ou sectionnees comme jumelles d'entrainment.
Busch 6x30 militarfernglas als traingsfernglas weggeschnitten oder geschnitten.
Binocolo militare Busch 6x tagliato via o sezionato comme binocolo da addestramento.
Busch 6x30 militaire verrekijker weggesneden of doorsneden als trainings verrejikfer.
Los binoculares militaires Busch Solluxon 6x30 cortados o seccionados coma binoculares de entrenamiento.
Busch 6x30 Solluxon militarea kikare skarsbort eller5 sektioneras som traningskikare.
Busch Solluxon Militaere 6x30 kikkert kuttet bort eller seksjonert som trenings kikkert.

Busch Solluxon 6x30 military sectioned or cut away as training binoculars.
Jumelles militares Busch 6x30 decoupees ou sectionnees comes jumelles d'entrainment
Busch militarfernglas 6x30 als trainingsferglas weggeschnitten oder geschnitten.
Binocolo militare Busch 6x30 tagliato via o sezionato come binocolo da addestramento.
Busch 6x30 ilitaire verrekijker weggesneden of doorsneden als trainings verrekijker.
Los binoculares militares Busch Solluxon 6x30 cortados o seccionados como binoculares de
entrenamiento.
Busch Solluxon 6x30 militara kikare skars bort eller sektioneras som traningskikare.
Busch 6x30 militaere kikkert kuttert bort eller seksjonert som trenings kikkert.

Carl Zeiss WWII Bulgarian Marked Military Cutaway Sectioned 6x30 Training or Instructional Binoculars Цейс 6x30 учебен

My Carl Zeiss 6x30cutaway sectioned binoculars were obtained from Bulgaria. and were used in the Bulgarian WWII training program of military optical technicians.

Carl Zeiss 6x30 military binoculars cut away or sectioned as training binoculars.
Jumelles militaires Carl Zeiss 6x30 decoupees ou sectionnees comme jumelles d'entrainment.
Carl Zeiss militarfernglas 6x30 bals trainingsfernglas weggeschnitten oder geschnitten.
Binocolo militare Carl Zeiss 6x30 tagliato vio o sezionato come binocolo da addestramento.
Carl Zeiss 6x30 militaire verrekijker weggesneden of doorsneden als trainings verrekijker.
Los binoculares militares Carl Zeiss cortados o seccionados como binoculares de entrenamiento.
Carl Zeiss militara kikare skars bort eller sektioneras som traningskikare.
Carl Zeiss 7x35 militaere kikkert kuttet bort eller seksjonert som trenings kikkert.

Carl Zeiss 6x30 military binoculars cut away or sectioned as training binoculars.
Jumelles militares Zeiss 6x30 decoupees ou sectionees comme jumelles d'nttrainement.
Carl Zeiss 6x30 militarfernglas als trainingsfernglas weggeschnitten oder geschnitten.
Binocolo militare Carl Zeiss 6x30 tagliato via o sezionato come binocolo da addestramento.
Carl Zeiss 6x militare verrekijker weggesneden of doorsneden als trainings verrekijker.
Los binoculares militares Carl Zeiss 6x30 cortados o seccionados como binoculares de entrenamiento.
Carl Zeiss 6x30 militara kikare skars bort eller sektioneras som traningskikare.
Carl Zeiss militaere kikkert bort eller seksjonert so trenings kikkert.

Carl Zeiss 6x30 bmilitary binoculars cut away or sectioned as training binoculars.
Jumelles militaires Carl Zeiss 6x30 decoupees ou sectionnees comme jumelles d'entrainement.
Carl Zeiss 6x30 militarfernglas als trainingsfernglas weggeschnitten oder geschnitten.
Binocolo militare Carl Zeiss 6x30 tagliato via o seizionzato come binocolo da addestramento.
Carl Zeiss militaire verrekijker 6x30 weggesneden of doorsneden als trainings verrekijker.
Los binociulares militares Carl Zeiss 6x30 cortados o seccionados como binoculares de entrenamiento.
Carl Zeiss militara kikare 6x30 skars bort eller sektioneras somm traningskikare.
Cark Zess militaere kikkert 6x30 kuttet bord eller seksjonert som trenings kikkert.

These are marked in Bulgarian Цейс ( Zeiss) and учебен ( training or instructional)

Huet French WWII Bulgarian Modified and Marked Cutaway Sectioned 8x30 Training or Instructional Binoculars ХЮЕТ 8x30 учебен

My Huet 8x30 cutaway sectioned binoculars were obtained from Bulgaria. and were used in the Bulgarian WWII training program of military optical technicians. The Huet factory markings have been over marked by ХЮЕТ ( Huet in Bulgarian), and these are also marked in Bulgarian учебен ( training or instructional)

Huet 8x30 military binoculars cut away or sectioned as training binoculars.
Jumelles militaires Huet 8x30 decoupees ou sectiionnees comme jumelles d'entrainement.
Huet 8x30 militarfernglas als trainingfernglas weggeschnitten oder geschnitten.
Binocolo militare Huet 8x30 tagliato via o sezionato come binocolo da addestramento.
Huet 8x30 militare verrekijker weggesneden of doorneden als trainings verrekijker.
Los binoculares militares Huet 8x30 cortados o seccionados com binoculares de entrenamiento
Huet 8x30 militara kikare skars bort eller sektioneras som traningskikare.
Huet militaere kikkert kuttet bort eller seksjonert som trenings kikkert.

Huet military binoculars 8x30 cut away or sectioned as training binoculars
Jjumelles militaires Huet 8x30 decoupees ou sectionnees comme jumelles
dentrainement.
Huet 8x30 militarfernglas als trainingsfernglas weggeschnitten oder geschnitten.
Binocolo militaire Huet 8x30 tagliato via o sezionato come binocolo da addestramento.
Huet 8x30 militaire verrekijker weggesnenden of doorsneden als trainings verrekijker.
Los binoculares militares Huet 8x30 cortados o seccionados como binocularesde entrenamiento.
Huet 8x30 militara kikare skars bort eller sektioneras som traningskikare.
Huet 8x30 militaere kikkert kuttet bort eller seksjonert som trenings kikkert.

Goerz WWII Bulgarian Marked Military Cutaway Sectioned 8x26 Training/ Instructional Binoculars, second variation, Гьорц 6x30 учебен

My Goerz 8x26 cutaway sectioned binoculars were obtained from Bulgaria and were used in the Bulgarian WWII training program of military optical technicians. These are marked in Bulgarian Гьорц ( Goerz) and учебен ( training or instructional)

Small Sampling of Other Items in my Cutaway & Parts Visible Collections (with Parts Functional)

My 1953 Cutaway sectioned 762x25 mm instructional Polish army Tokarev Pistol, used for armorer training.

My WWII Cutaway sectioned instructional British #36 Mills hand grenade/ rifle grenade

Two of my Sargent Cutaway sectioned sales or engineer sample padlocks

My 1918 WWI Cutaway sectioned Webley Mk.VI. 455 British army armorer training pistol.

My Cutaway sectioned

F1 Soviet hand grenade

WWI 1918 U.S. Navy 3X Non Prismatic binoculars produced by the U.S. Naval Gun Factory Optical Shop Annex, Rochester NY

1918 US Navy 10x45 military binoculars US Naval Gun Factory Optical Shop Annex.
1918 Jumelles militaires 10x45 de l'US Navy Naval Gun Factory Optical Shop Annex.
1918 US Navy 10x45 nilitarfernglas Naval Gun Factory Optical Shop Annex.
1918 binoculares militares 10x45 de la marina de los Estados Unidos.
1918 US Navy 10x45 militarkikare Naval Gun Factory Optical Shop Annex.
1918 Binocolo militare US Navy 10x45 Naval Gun Factory Optical Shop Annex.
1918 US Navy 10x45 militaire verrekijker Naval Gun Factory Optical Shop Annex.
1918 US Navy 10x45 militaere kikkert Naval Gun Factory Optical Shop Annex.
1918 US Navy 10x45 katonal tavcso Naval Gun Factory Optical Shop Annex.
Yhdysvaltain lavaston 10x45 sotilaskiikarit Naval Gun Factory Optical Shop Annex.
1918 Binoculos militares da marinha dos EUA 10x45 Gun FactoryOptical Shop.D

Created by the US Navy Dec. 15 1917 seizure of the Crown Optical Co., my U.S. Naval Gun Factory Annex Optical Shop 3 power Galilean non prismatic binoculars for the US Navy in 1918. They have an interesting gravity yellow filter system that drops down when the ocular barrel is rotated. This low performance optical design would have familiar to 1860’s Civil War officers, but was obsolescent compared to 1914-1918 military prismatic binoculars, including those above.

WWI 1918 U.S. Navy Bureau of Ordnance 10x45 binoculars produced by the U.S. Naval Gun Factory Optical Shop Annex, Rochester NY

1918 US Navy Bureau of Ordnance 10x45 binoculars Naval Gun Factory Optical Shop Annex.
1918 Jumelles militaires 10x45 de l'US Navy Gun Factory Optical Shop Annex.
1918 US Navy Militarfernglas Gun Factory Optical Shop Annex.
1918 Binoculares militares 10x45 de la marina de los Estados Unidos.
1918 US Navy 10 x 45 militarkikare Gun Factory Optical Shop Annex..
1918 Binocolo militare de US Navy 10x45 Gun Factory Optical Shop Annex..
1918 US Navy 10x45 militaire verrekijker Gun Factory Optical Shop Annex..
1918 US Navy 10x45 militaere kikkert Gun Factory Optical Shop Annex.
1918 Lornetka wojskoowa US Navy 10x45 Gun Factory Optical Shop Annex.
1918 US Navy 10x45 vojensky dalekohled Gun Factory Optical Shop Annex.
1918 US Navy 10x45 militaer kikkert Gun Factory Optical Shop Annex.
1918 US Navy 10x45 katonai tavcso Gun Factory Optical Shop Annex.
1918 US Navy 10x45 yhdysvaltain laivaston 10x45 Gun Factory Optical Shop.
1918 binoculos militares da Marinha dos EUA 10x45 Gun Factory Optical Shop.

L

Created by the U.S. Navy Dec. 15 1917 seizure of the Crown Optical Co., my U.S. Naval Gun Factory Annex Optical Shop (Rochester NY) produced 10x45 binoculars were made for the US Navy Bureau of Ordnance in 1918. The Bureau of Ordinance existed 1862-1959 as the U.S. Navy organization that was responsible for the procurement, storage, and disposal of all U.S. naval weapons. My 10x45 binoculars have rotating yellow ocular optical filters for naval use, and have sliding objective sun shields. The Rochester naval Gun Factory Optical shop annex closed in 1919.

WWI 1918 U.S. Navy Bureau of Navigation 6x30 binoculars produced by the U.S. Naval Gun Factory Optical Shop Annex, Rochester

Created by the U.S. Navy Dec. 15 1917 seizure of the Crown Optical Co., my U.S. Naval Gun Factory Annex Optical Shop (Rochester NY) produced 6x30 binoculars were made for the US Navy Bureau of Navigation in 1918. The U.S. Navy Bureau of Navigation existed from 1862 to-1942, with activities ranging from charts, navigation research & instruments to Navy personnel management and assignment. My 6x30 binoculars have an elaborate rotating red ocular optical filters for naval use. The Rochester naval Gun Factory Optical shop annex closed in 1919.

The carry case is U.S. Naval Gun Factory Optical Shop Rochester NY marked

The case is marked with the address of a previous owner “F.H. White 727 E. Baker St., Flint, Mich Please Return” reflecting binoculars were highly valued until recently.

Military binocular cases are often marked with the maker. It raises the question if the Navy wartime ownership of the factory had a case production line. They could easily have, by simply ordering it be so.

Mechanism of the rotating ocular filter

My Cutaway Sargent door closer

One of three Sargent cutaway hotel card locks I had ordered created for trade shows when I was director of that product line.

Cutaway miniature binoculars I made by hand.

My Cutaway sectioned Crossman MK 2 air pistol, ex Beeman private airgun collection #160.

My Cutaway sectioned

U.S. M365 timed 0-100 second clockwork detonator artillery fuse

Used in 105-8 inch artillery cannons