Boulder Magnetic Observatory
![Zeiss Jena 010B Theodolite for making absolute measurements at Boulder magnetic observatory.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/theodolite_half_size.jpg?itok=LxOboGz7)
Detailed Description
Zeiss Jena 010B Theodolite for making absolute measurements at Boulder magnetic observatory.
Sources/Usage
Public Domain.
Zeiss Jena 010B Theodolite for making absolute measurements at Boulder magnetic observatory.
Public Domain.