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Tafeln zur Untersuchung des Farbenunterscheidungs-Vermogens / Nagel's Test Cards for Colour blindness
COLOUR VISION TESTS
colour vision test - pseudo-isochromatic
J. F. Bergmann
Europe: Germany, Bayern, Munchen
1934
paper; card
each card: 81 mm x 277 mm; overall (envelope): 109 mm x 289 mm
2010.59
COLOUR VISION TESTS
colour vision test - pseudo-isochromatic
J. F. Bergmann
Europe: Germany, Bayern, Munchen
1934
paper; card
each card: 81 mm x 277 mm; overall (envelope): 109 mm x 289 mm
Set of sixteen colour test cards consisting of square cards bearing printed rings of coloured dots, mounted four at a time on black rectangular cards . Contained in an original orange envelope.
2010.59
Gift of Professor R. J. Fletcher FCOptom, 2010