| Adolphe Braun Belfort - les hautes et basses perches [Belfort - the high and low redouts] [Théâtre de la Guerre, 1870-1871] 1870-1871 Albumen print 6.3 in x 7.4 in (159 mm by189 mm) Paul Frecker Courtesy of Paul Frecker LL/17196 Les Perches at Belfort were the name of a geographical feature, ridges on which redoubts were situated.
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