Subjects Business

Map Lovers’ Monday: Schuylkill River from Wissahickon Creek to Norristown, 1913

Philadelphia harbor and rivers chart with points of interest

Map of Philadelphia Harbor, Delaware and Schuylkill, 1912

Photograph of Roberts Mill on Wingohocking Creek in Germantown, built in the late 17th century. (Photograph by J. C. Browne, 1871. Castner Collection/Free Library of Philadelphia)

Roberts Mill, Wingohocking Creek, 1871

Old U. S. Navy Yard

Old U. S. Navy Yard

1949 National Board of Fire Underwriters map

Fire Underwriters’ Map, 1949

Schuylkill River from below the South Street Bridge, 1873

Coal Depot, Richmond, on the Delaware (Picturesque America)

Schuylkill River from below the South Street Bridge, 1873

Buried Treasures No. 1: The Franklin Sugar Refinery

Frankford borough map, 1845

Map of Frankford Borough, 1845

Girard Avenue Bridge, Fairmount Park

Girard Avenue Bridge, Fairmount Park, 1895

Philadelphia Navy Yard, July 1872