T21 Theodolite
![Image: T21 Theodolite](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/000198_Theodolite.jpg?itok=B2K0OJ5n)
Detailed Description
Manufactured by WILD Heerbrugg, Switzerland. This instrument was made in the late 1950s- early 1960s and was in service until the late 1970s. It includes its original air-tight and water-tight steel case, as well as its shipping case.
Object ID: USGS-000198
Sources/Usage
Public Domain.