| Gertrude Käsebier Alfred Stieglitz 1902 Glass dry plate negative Library of Congress, Prints and Photographs Division Reproduction Number: LC-DIG-ppmsca-12142 (digital file from original item), Call Number: LC-K21- 56 [P&P] LL/48768 Date based on similar image in: Gertrude Käsebier, The photographer and her photographs, Barbara L. Michaels, 1992, p. 75.
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