mrbrnmkg: Schematic of mechanism for a baseball cover sewing machine designed by S.J. Finn, March 1949. Drawing by Don Hamm. United Shoe Machinery Company Records, Box 105A, Folder 2.
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mrbrnmkg:

Schematic of mechanism for a baseball cover sewing machine designed by S.J. Finn, March 1949. Drawing by Don Hamm. United Shoe Machinery Company Records, Box 105A, Folder 2.

(via mightyflynn)

Source: blog.americanhistory.si.edu

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