Herdorf 1876 - 1964 Cologne
Postumous gelatin silver print, printed 1979 by Gunther Sander. 30.4 x 23.9 cm. Photographer's blind stamp at lower left. Signed and dated in pencil by Gunther Sander on the verso. Mounted to original card. Edition stamp, therein titled and numbered in pencil, on the reverse of the mount. Editioned 25/75. Edition Kunstraum Munich. - Matted.
Gunther Sander (ed.), August Sander. Menschen des 20. Jahrhunderts. Portraitphotographien 1882-1952, Munich 1994, ill. p. 286