Topics Technology & Engineering

Birch’s Views of Philadelphia, 1800

Centre Square Water Works, Frederick Graff, Sr. Plans, 1799

Benjamin Henry Latrobe, portrait by Filippo Costaggini, 1880

Centre Square Water Works, Latrobe Plans, 1799

DeLaval Beauty Shots 6

Electric Pump Installations at Lardner’s Point Pumping Station

New Mill House at Fairmount (2008.001.0046)

New Mill House at Fairmount