A.D.P.

A.D.P. is a trademark of Adolph Posener & Co., standing for Adolph David Posener. Brothers Adolph and David Posener were associates until 1877. When David left the partnership, the trademark remained A.D.P. but the hallmark on silver work was A.P. imprint. Note: Adolph Posener middle name was David.

A.D.P. was usually mistaken for Alfred Dunhill Pipe, which did not start making pipes before 1904, and never used any ADP trademark.

The British Trade Journal (1 january 1885, p. 2). Photo credit: Dino Argyropoulos.

1891 Adolph Posener & Co. pipe with A.D.P. trademark on wood and A.P. hallmark on silver. Photo credit: Dino Argyropoulos.

In the Sherlock Holmes stories

• An A.D.P. briar-root pipe was found in John Straker's pocket. (SILV, 228)

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• Acknowlegments: Thanks to Dino Argyropoulos.