Queen Victoria Overprints : O, P
O
O. B. C. (Oriental Bank Corporation)
Okell & Co. / Okell, Selkirk & Co.
P
P S N C (Pacific Steam Navigation Company)
P. & O. / P. & O. S. N. Co. / P & O Orient Lines
P. B. & Co. (Pember, Boyle & Co.)
P. B. & W. Ld. (Peek Brothers & Winch Ltd.)
P. J. & Co (Pinchin, Johnson & Co.)
P. P. C. C. Ld. / P. P. C. Co. Ltd. (Price’s Patent Candle Co. Ltd.)
Pawson & Company Limited / Pawsons & Leafs Ld.
Phillipps & Graves / Phillipps, Graves, Phillipps & Co.
Provincial Insurance Company / Provincial Life Insurance Company