Creator
- Pharmacie Centrale d'Hai_ti.1
- Phoenix Drug Co. (Hamilton, Bermuda)1
- Photo & Art Postal Card Co. (New York)1
- Pictorial Centre.1
- Pitt, John A.1
- Platinachrome Co. (N.Y.)1
- Polhill-Denny Drug Co. (Louisville, Ga.)1
- Post Card Exchange (Birmingham, Ala.)1
- Post Office News & Cigar Store (Hennessy, Okla.)1
- Poving, F. C.1
- Pre Vues (Fla.)1
- Pruss' Photo Postal Studio (St. Louis, Mo.)1
- Putnam Art Co. (Grove Hall, Boston)1
- Radio Corporation of America1
- Radio Corporation of America.1
- Rappold, Emil.1
- Reichner Brothers (Boston, Mass.)1
- Rensler's (Cincinnati, Ohio)1
- Rhode Island News Company (Providence, R.I.)1
- Rich Bros. Candy Co. (Williamsport, Pa.)1