Category Archives: Survey Artifact Collection

EDM, Tellurometer, CA 1000 (Slave and Master Unit)

EDM, Tellurometer, Model CA 1000, s/n 1458 (Master unit). DM, Tellurometer, Model CA 1000, s/n...

EDM, Tellurometer, CD6

Tellurometer CD6, s/n 1939, case, manuals and accessories.

EDM, Tellurometer, MRA 1

Remote, Serial No. 427, With metal carrying case ,eyeshade, aluminum tube containing electronic parts, two...

EDM, Tellurometer, MRA 2

Tellurometer MRA 2. The MRA 2 was introduced in 1960. It incorporated both the Master...

EDM, Tellurometer, MRA 3

Tellurometer MRA3. The MRA3 was introduced in 1963. It used transistors and had an improved...

EDM, Tellurometer, MRA 5

Unit 1203. This one of two similar units that work together to measure distances electronically....

Theodolite, Cooke, Troughton & Simms s/n V012509

s/n V012509. This theodolite reads directly to 20 minutes of arc on its horizontal and...