Surveying Instrument Collection
Maker |
Wild, Heerbrugg, Switzerland |
Model |
B3 Tripod Compass |
Serial Number |
180633 |
Dimensions |
98 mm diameter, 120 mm high |
Image |
|
Description |
Tripod mounted prismatic compass with spot bubble, ball and socket head for levelling, spot bubble and small telescope. Circle graduated to 2°. Diametrical circle reading. Circle interpolation to 0.1-0.2°. Features a horizontal motion clamp and a slow motion screw. Wild did advertise a newer model of the B3 in 1986. The newer model allowed the clamping of the circle to the base, thus allowing the use of the B3 as a simple measuring device for horizontal directions. (See WILD brochure G1 426e) |
History & comments |
ca 1969 |
Conservation |
In leather case 115 x 115 x 135 mm, with carrying strap. |
Condition |
in mint condition. |
Remarks |
Date on label on carrying case: '30 May 1968'. 'Double Image Prism Compass Wild G412' marked on case. |
Dates |
Catalogued in 2008 by JMR. Photo by JMR. |