Map Contour Engraving Tools
![Image: Map Contour Engraving Tools](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/Copper_plate__tools__burin_and_hand_lens.jpg?itok=DmU6Q2cX)
Detailed Description
Tools of the trade for a US Geological Survey engraver- the burin and the hand lens, resting on a contours engraving.
Sources/Usage
Public Domain.
Tools of the trade for a US Geological Survey engraver- the burin and the hand lens, resting on a contours engraving.
Public Domain.