Color-wheel, with disks. By Milton Bradley Co., Springfield See another <link ref="tec2953">Milton Bradley color mixer</link> on the same photograph. See also the same device on <link ref="tec3100">another photograph</link> from the Harvard collection. The History of Psychology Collection at Banard College refers to this device as <link href="http://www.barnard.edu/psych/museum/b_museum.htm#2">Milton Bradley color mixing apparatus</link> and provides a color photograph. Color-wheel, with disks. By Milton Bradley Co., Springfield

beta