| Christian Schad Schadographie 168 1977 Gelatin silver print 24 x 18 cm Bassenge Photography Auctions Auction 104, 3 December 2014, 19th - 21st Century Photography, Lot: 4275 LL/56133 Lit.: G.A. Richter. Christian Schad - Druckgraphiken und Schadographien 1913 - 1981. 1997, ill. no. 117.
Museum Ludwig Köln. Photographie des 20. Jahrhunderts. Cologne, 1996, ill. p. 588.
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