Cardboard and gelatine paper of various colors, two hundred sheets of colored paper, colored crayons, etc. By Milton Bradley Co., Springfield; Prang, Boston, etc. See a color photograph of this device in the <link href='http://dssmhi1.fas.harvard.edu/emuseumdev/code/emuseum.asp?rawsearch=Number%2F%2C%2Fis%2F%2C%2FWJ0619%2F%2C%2F0%2F%2C%2F0'>Harvard Collection of Historical Scientific Instruments</link>. Cardboard and gelatine paper of various colors, two hundred sheets of colored paper, colored crayons, etc. By Milton Bradley Co., Springfield; Prang, Boston, etc.

BibTeX Export

@misc{59976,
  note         = {{Comment Rand Evans II: IMG30182  These are cards 
                   wrapped with colored worsteds and are based on the
                   Holmgren Worsted  test for color blindness.  I
                   have  seen a photograph and description of them
                   recently and  will look through my materials to
                   locate them.  http://vlp.mpiwg-berlin.mpg.de/libra
                   ry/data/lit8140/index\_html?pn=11\&ws=3.0\&mk=0.5193/
                   0.5517\&wid=digi\_8399 Unknown. Does this device
                   have to do with appreciation of color?  Thumbnail
                   replaced with marked version.}},
  url          = {https://vlp-new.ur.de/images/img30182}
}