Author
ADC (Firm)
14
Alexandria Drafting Company
5
Pennsylvania. Department of Conservation and Natural Resources
4
American Automobile Association
3
MacInnes, Sharon Cook
3
Pennsylvania. Bureau of Topographic and Geologic Survey
3
Southeastern Pennsylvania Transportation Authority
3
Big Bus Company of Pennsylvania
2
Fairmount Park Commission (Philadelphia, Pa.)
2
Geological Survey (U.S.)
2
Historic Antique Row Business Association
2
Joel Katz Design Associates
2
MacInnes, Angus
2
Mural Arts Program (Philadelphia, Pa.)
2
Parallel Design, Inc
2
Penn Mutual Life Insurance Company
2
Pennsylvania. Department of General Services
2
Pennsylvania. Department of Highways
2
Philadelphia (Pa.). Office of the Managing Director
2
Philadelphia Transportation Company
2
Philadelphia's Historic Neighborhood Consortium
2
Phlash (Firm : Philadelphia, Pa.)
2
Rand McNally and Company
2
Reed, Carroll E.
2
Southeastern Pennsylvania Transportation Authority. Cartography Department
2
United States. Bureau of the Census
2
76 Carriage Company
1
A Cappella Arts (Firm)
1
Aero Service Corporation,
1
Allen, Lane & Scott
1
American Map Corporation
1
Andre, John, Major
1
Arms, C.T.
1
Arms, W.F.
1
Baist, G. Wm. 1859-1927
1
Beers, F. W.
1
Brakel, Adele R.,
1
Broom, Jacob
1
Bucks County Genealogical Society
1
Cardellino, Mary Ann
1
Charles D. Hevenor Company
1
Colton, G. Woolworth 1827-1901
1
Constitutional Foundation (Philadelphia, Pa.)
1
Constitutional Walking Tour of Philadelphia (Firm)
1
Cuff, David J.
1
DeLorme Mapping Company
1
Delaware River Port Authority
1
Delaware Valley Regional Planning Commission
1
DenBoer, Gordon, 1933-
1
E.P. Noll & Co
1
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