- P. & D. Photo Service, Inc. (Oklahoma City, Oklahoma) (1)
- P. Benson (Minneapolis, Minn) (1)
- P. Benson (Minneapolis, Minn.), 1893 (1)
- P. F. Collier and Son (1)
- P. F. Collier and Son (New York), 1903 (7)
- P. F. Collier and Son (New York), 1913 (5)
- P. J. Gallais et Cie (18)
- P. S. Eriksson (New York) (1)
- P. Santini (Venice) (1)
- P. Santini (Venise) (3)
- P. Schenk et G. Valk ; Amsterdam (1)
- P.A. Huldberg (Stockholm), 1856 (1)
- P.A. Norstedt & söners förlag (Stockholm) (7)
- P.C. Studios (Asbury Park, New Jersey) (1)
- P.F. Volland (Joliet, Ill) (1)
- P.G. Chanlaire (Paris) (1)
- PBS (1)
- PICK-S (3)
- Pacific Coast Pub. Co. (Santa Barbara) (1)
- Pacific Novelty Company (San Francisco & Los Angeles, California) (2)
