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schmalcalder type
alidade. Inscribed on the back of the prism is the following: '[trade mark] ANSCHUTZ//S 0851 No.74', and on the back of the prism: eagle and swastika symbols, 'M//267// [Plath trademark]'.
Heavy black painted brass open frame with cross piece at centre which has a brass stud that fits into centre of verge glass. The fore sight is an open frame with thread and a dark glass reflector. The back sight contains slit, peep hole, prism, and two dark shades.
Heavy black painted brass open frame with cross piece at centre which has a brass stud that fits into centre of verge glass. The fore sight is an open frame with thread and a dark glass reflector. The back sight contains slit, peep hole, prism, and two dark shades.
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Object Details
| ID: | ACO1346 |
|---|---|
| Type: | Alidade |
| Display location: | Not on display |
| Creator: | Plath, C. |
| Date made: | circa 1938 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 115 mm x 265 mm x 57 mm |