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 |
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