1891 and 1914 engraving machines. 3:56 video. Captioned as:
That's Yann Pronier in the video using a 1914 old Duget “tour a guilloché” (rose engine) machine and the other is a 1891 old “ligne droite” (straight line) from Duget machine (an old french engine maker).
Previously:
Rose engine fly cutting - GIF
Cutting spirals with a rose engine lathe - GIF
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