Creator
- Overly, Charles H.1
- Ovesen, A.1
- PCK.1
- Pan American Publishing Corp. (North Miami, Fla.)1
- Perry & Co. (Cape Town, South Africa)1
- Pharmacie Centrale d'Hai_ti.1
- Photo & Art Postal Card Co. (New York)1
- Pictorial Centre.1
- Polhill-Denny Drug Co. (Louisville, Ga.)1
- Pre Vues (Fla.)1
- Pruss' Photo Postal Studio (St. Louis, Mo.)1
- Rappold, Emil.1
- Rensler's (Cincinnati, Ohio)1
- Rich Bros. Candy Co. (Williamsport, Pa.)1
- Richt-Art.1
- Romer, G. W.1
- Rose-Rosette, Fe_lix.1
- Rotary Photo.1
- Royal Mail Steam Packet Company.1
- Runca Import Company (Rutherfordton, N.C.)1