Fairmount Water Works from the forebay, 1833
Fourth of July, Centre Square, ca. 1812
Bridge Street Draw. Southwest side of bridge. April 19, 1896. [Detail].
Preparation for War to Defend Commerce
State Street pipeline construction, 1904
Tour or lecture or other event to which the public is invited. In the context of this website, this could mean either an event that has happened in the past or one that is scheduled for the future.