your pegboard looks like an earlier or a later edition of the plastic pegboard we have at the psychology museum. All pegs have two colors like yours. Among other things these and other pegboards were developed for testing dexterity in recruitment contexts and for testing and training eye-hand-coordination in neuropsychology. In neuropsychology it helps to assess neurological damages. Our version has the imprint "U.S.E.S. PEGBOARD". The abbreviation stands for "United States Employment Services". We got our exemplar donated though from the psychological laboratory of the Otto Wagner Hospital in Vienna, a psychiatry.
Does your pegboard has an imprint, too? How or where did you get hold of it?
Thank You!
Sascha Frank, Berlin