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Date: |
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Description: | 1 V 920
PATT 173 No. 920
Brass painted grey. Has a large prism sight and a counter balance opposite that which has a hole for a shadow pin. The prism has a notched back sight and the fore sight being a nipple on the celestial reflector. There are two circular filters and a milled screw for moving the prism. There is a spirit level under the prism.
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caption: Record Shot - Do not reproduce. | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Subjects: | Azimuth azimuth dials | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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