|
Date: |
|
Description: | Graduations-Semi-circle graduated 0-180, 180-0. The alidade 8.75" (22.3cm) long has a vernier scale at each end. A ball and socket head is attached to back of instrument.
Sights-There is a provision for two detachable sight vanes on semi-circle and two on alidade.
Compass-Dia. 3.5" (8.9 cm) mounted at centre of alidade. Graduated to 8 points, quadrantally in degrees and anti-clockwise to 360 degs.
Complete with a wooden tripod stand. | Publisher: | "http://collections.rmg.co.uk/" | Subjects: | graphometers | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
|
More Like this...
-
Graphometer
Choizy AParis 1667
Graduations-Semi-circle graduated…
-
graphometer
CHAPOTOT//A//PARIS
Graduations-Semi-circle graduated 0-180, 180-0.…
-
graphometer
F. Vautout-Choizy AParis
Graduations-Semi-circle graduated…
-
-
-
-
graphometer
Vernier//1630
Graphometer. The graphometer is…
-
-
-
|