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Date: |
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Description: | (Eagle & swastika) M 2116
alidade
A heavy grey painted brass alidade with wide cross piece which holds a spigot to fit into compass verge glass, and a locking lever. The fore sight is an open frame with thread, with a dark glass and mirror reflector for celestial observations. Back sight contains slit, peep-hole with prism and dark shades.
For use on small repeaters associatid with Plath and Patin transmitting magnetic compasses.
(see ACO2524 and 548)
O.A. Height 6.5" (16.5 cm)
In fitted wooden box 9.1" x 5.5" x 5.5" (32.2 x 14.0 x 14.0 cm) : containing two shadow pins.
AUDIT - 3 parts need numbering.
Inscription.
caption: Record Shot - Do not reproduce. | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Subjects: | alidades | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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