Author
Big Bus Company of Pennsylvania
2
Parallel Design, Inc
2
Philadelphia Transportation Company
2
Philadelphia's Historic Neighborhood Consortium
2
Phlash (Firm : Philadelphia, Pa.)
2
76 Carriage Company
1
Constitutional Foundation (Philadelphia, Pa.)
1
Constitutional Walking Tour of Philadelphia (Firm)
1
Delaware Valley Regional Planning Commission
1
Friedman, T. G.
1
H. M. Gousha Co
1
Hamel, Bernice T.
1
Historic Philadelphia, Inc
1
Jackson, Joseph, 1867-1946
1
Joel Katz Design Associates
1
Leisure Pass North America, LLC
1
Once Upon a Nation
1
Philadelphia Board of Trade
1
Philadelphia Electric Co
1
Philadelphia Rapid Transit Company
1
Philadelphia Trolley Works
1
Playground Maps Inc
1
Southeastern Pennsylvania Transportation Authority
1
Southeastern Pennsylvania Transportation Authority. Cartography Department
1
Springer Cartographics
1