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Rangefinder
rangefinder in wooden box containing tommy bar, screwdriver, and two spare mirrors. Also book of instruments in Japanese.
Scales: 1. Height scale on spring-loaded index arm graduated from 18-60 in black figures and from 9-18 in red figures.
2. Range scale on micrometer drum. Various figures and Japanese symbols.
Horizon glass:Perpendicular adjustment by means of screw on back of mirror. Parallel adjustment by means of capstan screws
Index glass: Perpendicular adjustment by means of screw on back of mirror.
Micrometer drum: Attached to carriage which moves alongside index bar by fluted knob on carriage. Locking device for drum.
In fitted wooden box 11.5" x 6.5" x 5.3" (29.2 x 16.5 x 13.5 cm) containing tommy bar, screwdriver, and two spare mirrors. Also book of instructions in Japanese.
Scales: 1. Height scale on spring-loaded index arm graduated from 18-60 in black figures and from 9-18 in red figures.
2. Range scale on micrometer drum. Various figures and Japanese symbols.
Horizon glass:Perpendicular adjustment by means of screw on back of mirror. Parallel adjustment by means of capstan screws
Index glass: Perpendicular adjustment by means of screw on back of mirror.
Micrometer drum: Attached to carriage which moves alongside index bar by fluted knob on carriage. Locking device for drum.
In fitted wooden box 11.5" x 6.5" x 5.3" (29.2 x 16.5 x 13.5 cm) containing tommy bar, screwdriver, and two spare mirrors. Also book of instructions in Japanese.
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Object Details
| ID: | NAV1088 |
|---|---|
| Type: | Rangefinder |
| Display location: | Not on display |
| Creator: | Unknown |
| Date made: | circa 1940 |
| Credit: | National Maritime Museum, Greenwich, London |
| Measurements: | Overall: 115 mm x 255 mm x 137 mm |
| Parts: | Rangefinder |