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[Interior view of factory showing industrial machinery patented by Samuel Harrison]

Spinning room - Winding bobbins with woolen yarn for weaving, Philadelphia, Pa.

Horseshoe machine.

General view of the erecting shop, Baldwin Locomotive Works, Philadelphia, Pa., U.S.A.

Franklin Institute Exhibition, 1874.

Machinery Hall, S. Avenue looking east.

Interior views of Franklin Institute Exhibition, 1874.