USGS Cartographer at Work
![Image: USGS Cartographer at Work](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/MP001-300.jpg?itok=zlS3WFx5)
Detailed Description
Performing color separation scribing of the culture separate of a USGS topographic map using a swivel graver.
Sources/Usage
Public Domain.
Performing color separation scribing of the culture separate of a USGS topographic map using a swivel graver.
Public Domain.