The Mint's Double Parting Process 1884-85-- A Detailed Step by Step Guide
JCH22
Posts: 170 ✭✭✭
Esoteric, but for those with technical interest in the Mint's historical internal processes
Disclaimer--Do not try this at home!
https://ia803105.us.archive.org/13/items/partingprocessus00egle/partingprocessus00egle.pdf
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