| Unidentified photographers Tramp Art memorial object with 6 photographs recreating the "Battle of the Sonne" [Somme] and at top, a hand-colored portrait of a German soldier. 1917 Frame, real photo postcards (6), hand-coloured portrait 20 1/4 x 15 ins (51.4 x 38.1 cm) (frame) Swann Galleries - New York Images & Objects: Photographs & Photobooks, April 20, 2017, #2443, Lot: 295 LL/74192
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