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/MP023-300.jpg?itok=4Sk7Gb_N)
Detailed Description
Color separation scribing of the contour plate for a USGS topographic map using a freehand scriber. This handheld stylist was designed to hold a phonograph needle that was sharpened to engrave a .003" scribed line.
Sources/Usage
Public Domain.