Inside Out Library
Machinery pattern making (1892)
Dingey, Peter Spear. [from old catalog] · New York, J. Wiley & sons · leaf 144
15 IH.P. 10 to 17 IH.P. is to 19 1%: P.Patternmaking
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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