Company Overprints : P and Q

P S N C (Pacific Steam Navigation Company)

P. & C. Finance Ltd.

P. & O. / P. & O. S. N. Co. / P & O Orient Lines

P. & R. Fleming & Co.

P. & W. Maclellan Limited

P. B. & Co. (Pember, Boyle & Co.)

P. B. & W. Ld. (Peek Brothers & Winch Ltd.)

P. B. Cow & Co.

P. F. & Co. Ld./M. Ld./S. C. Ltd. (Peek Frean, Meltis, Suchard Chocolate Ltd.)

P. G. & H. Ltd. (Patrick, Grainger & Hutleys Ltd.)

P. Henderson & Co.

P. J. & Co (Pinchin, Johnson & Co.)

P. J. & Co. Ltd. / W. H. & C. Ltd.

P. Moir Crane & Co.

P. P. C. C. (Price’s Patent Candle Co. Ltd.)

P. P. LTD. (Phillips Patents Ltd.)

P. Phipps & Co. Limited

P. S. C. B, Co. Ltd.

P. S. Yapp / Peter Yapp

P. Tobin & Sons

P. W. & A. Ltd. (Parker, Winder & Achurch Ltd.)

P. W. C. (Portsmouth Water Company)

Palmeira Stores

Palmer & Howe / Palmer, Howe & Co.

Parker & Sons Ltd.

Parry, Sons & Hanson Limited

Paul Walser & Co. Ltd.

Pawson & Company /Pawsons & Leafs Limited

Peak & Co. Cambridge

Pearl Assurance Compy., Limited

Pearman & Corder Ltd.

Peek Bros. & Co.

Peek Frean & Co. Ltd.

Pelican and British Empire Life Office

Penson & Co. Limited

Petty, Wood & Co. Ld.

Pfeil, Stedall and Son

Phillipps & Graves / Phillipps, Graves, Phillipps & Co.

Philllips & Co.

Phoenix Assurance Co. Ld.

Piggott Bros. & Co. Ltd.

Pilchers Limited

Pilot Assurance Co. Ltd.

Pinn Supplies Limited

Pitman & Deane Limited

Plaistowe & Co. Ld.

Platt Bros. & Co. Limited

Plymouth Gas Co.

Pocock Bros. Ltd.

Ponsford, Southall & Co.

Port of London Authority

Portsea Gas Co.

Portsmouth and Gosport Gas Co.

Portsmouth Gas Co.

Portsmouth Water Co.

Potter & Moore Limited

Powell, Britten & Co.

Premier Electric Heaters Limited

Premier Motor Policies Ltd.

Press Bros. Ltd.

Preston Bros. & Co.

Pride and Clarke Ltd.

Pritchard & Burton

Provident Clerks

Provident Mutual Life A. A.

Provincial Insurance Company

Prudential Assurance Company Limited

Pugh & Co. (London) Ltd.

Q