2 Potter, Paul M. (Paul Meredith), 1853-1921. Conquerors - Posters 2 Potter, Thomas, Son & Co. Oil Cloth Works 1 Potteries (factories) 48 Pottery 13 Pottery industry 1 Pottier (Firm) 12 Pottstown, Pennsylvania 2 Poultry 1 Pounds (coins) 10 Poverty 1 Powder 1 Powder flasks 3 Powder mills 1 Powel House 2 Powell & Bishop 6 Powell House 2 Powell, Nathaniel (1813-1873) 2 Powell, Thomas, 1809-1887 2 Powell, W. Bleddyn, Architect 1 Powell's Saw Mill 1 Powelton Avenue 1 Powelton Avenue 3 Powelton Avenue 1 Powelton Hotel 9 Powelton, Pennsylvania 2 Power 3 Power lines 5 Power, Marguerite A., 1815?-1867 1 Power, Tyrone, 1797-1841 3 Powerhouses 13 Powers & Weightman 1 Power's Philadelphia Cider & Vinegar Works 1 Practical Technological Institute 1 Prague, Czech Republic 1 Pratt see Robinson & Pratt 7 Pratt Street 1 Pratt trusses 1 Pratt, Henry, 1761-1838 1 Pratt, Jas. D. Coal & Lumber Yard 2 Pratt's Food Co.
