Nick Graver forwarded a great video (sent to him by his friend Robert Vogel,
retired Historian of Mechanical & Civil Engineering at the Smithsonian) about the Rose Machine
and other geometrical lathes used for producing intricate patterns on coins and paper money.
Thanks! It's a delight to watch. Here are a few images to whet your appetite. -Editor
The Rose Engine and a Rose Engine Design Example
Geometric lathe and stock book of patterns
To view the complete video, see:
Banknote and Coin Engraving-.wmv
(www.youtube.com/watch?v=LJv0KpuDR1g)
THE BOOK BAZARRE
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"John Huffman Collection"
Wayne Homren, Editor
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