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v. Haselberg, Tafel zur Entlarvung der Simulation. Zweite Auflage. / Von Haselberg's Chart for Exposing Simulation 2nd Edn
TEST CHARTS
test chart
von Haselberg; J. F. Bergmann
Europe: Germany, Hamburg
1908
paper; card
overall (open): 435 mm x 300 mm; wallet: 225 mm x 158 mm
1998.412
TEST CHARTS
test chart
von Haselberg; J. F. Bergmann
Europe: Germany, Hamburg
1908
paper; card
overall (open): 435 mm x 300 mm; wallet: 225 mm x 158 mm
Simulation test for detecting one-sided blindness and weak sight, printed in black and red lettering and numerals on white card, double-sided plain letering on one side and German gothic lettering on the other side, folded into a grey card wallet. 2nd enlarged edition, designed after Snellen.
1998.412
Acquired 1954