Item no. P1451a (postcard)

Type: cover

Country: USA

Date of use: 22 May 1931

Business Reply Mail (postcard, front of) used by the MALLINCKRODT CHEMICAL WORKS in St. Louis (Missouri, USA), a chemical factory (operating since 1867) producing various products, also chemicals for photographic purposes that were described in “Mallinckrodt Photographic Chemicals” (e.g. issue 1943). It was for some time (since 1880) a major producer of bromides for photography. Mallinckrodt published manual (several times reissued) “The Chemistry of Photography” (1931). The card served as an order form for a free
trial sample of developer PICTOL, one of Mallinckrodt’s “Photo purified” chemicals.

Utworzone

poniedziałek 3 październik 2016

Tagi

Photographic chemistry

Albumy

• Covers / America / USA / Others items

Odwiedzin

9363

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nieoceniane

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