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Radiophone

Radiophone, also known as a radiotelephone, is a device that uses radio waves to transmit...

Alidade, W. & L. E. Gurley

Alidade, W. & L. E. Gurley

Compass, Trough

12 cm long X 1.5 X 1.7 cm. Lever to lock compass needle on side.

Alidade, K&E

Alidade, Keuffel & Esser Co., Serial No. 103971 matching tripod and plane table ALSA 2012.02.02.

Plane Table (Includes tripod)

Plane table, tripod, box and two caps for tripod head.

Alidade, Bausch & Lomb

Plane table alidade with box c/w tripod ALSA 2010.06.02 and Plane Table ALSA 2010.06.03

Plane Table, Sights with Straight Edge

Plane table sights with leather case.

Plane Table, ALSA 2010.06.03

Wooden plane table with canvas bag. c/w tripod ALSA 2010.06.02.

Plane Tables

The plane table and alidade has been used for mapping topographical features for centuries. Don...

Plane Table Tripod, Wooden

Tripod for plane table.