Engineering: three-quarter views of two milling machines. Engraving, c.1861.
Wellcome Collection

Engineering: three-quarter views of two milling machines. Engraving, c.1861.

1861

CC0 — Public Domain
Wellcome Collection

Lettering: Slotting and shaping machines. Fig. 1.-Sharp, Stewart, & Co.'s patent self-acting slot-drilling machine Fig. 2.-Muir's slotting machine..

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