|
Date: |
|
Description: | This instrument consists of a diameter cut away and two folding sight vanes. The diameter has a crossbar at centre which holds a raised section to accommodate the compass spigot. The back sight vane is a wide slit with a V notch at the top. It has two spring clips. The fore sight is an open arch and thread,(missing). There is a raised point at the top of the vane. The thread also runs along the diameter. Both vanes can be locked upright by small levers.
A
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 |
|
More Like this...
-
Alidade
This instrument consists of a…
-
-
Alidade
This instrument consists of an…
-
-
-
-
Alidade
alidade
A heavy grey painted…
-
-
Alidade
(Nazi eagle) M 3600.
Bauart…
-
|