Author
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National Society of the Colonial Dames of America in the Commonwealth of Pennsylvania
1
Pearse, John B. 1842-1914
1
Pennsylvania Bureau of Industrial Statistics
1
Pennsylvania Historical and Museum Commission
1
Philadelphia Manufacturers of Hardware, Smiths and Iron-Founders
1
Potts, William McCleery b. 1856
1
Reading Iron Co
1
Reading Iron Works (Reading, Pa.)
1
Reasler, Kenneth
1
Reed, Herbert P.
1
Robeson and Paul
1
Robesonia Iron Company, Limited
1
Robesonia Iron Company, Ltd. (Philadelphia)
1
Rutter, Thomas and Samuel Potts
1
Shoemaker, Henry Wharton, 1880-
1
Swank, James Moore 1832-1914
1
Sweden Kommissionen för Sveriges deltagande i Verldsutställningen i Filadelfia, 1876
1
Sweden. Kommissionen för Sveriges deltagande i Verldsutställningen i Filadelfia, 1876
1
Taylor, Frank H. 1846-1927
1
Thomas Iron Co
1
Thomas Iron Company
1
United States Dept. of the Interior National Park Services
1
United States. Congress
1
United States. Congress House
1
United States. Department of the Interior. Southwestern Pennsylvania Heritage Preservation Commission
1
United States. National Park Service
1
United States. National Park Service. Denver Service Center
1
Walker, Joseph E, 1911-
1