Gwyn's Triangle Test

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Gwyn's Triangle Test, a form board with four triangular insets, made of seasoned wood with a cloth backing. One of the original tests of the Knox series devised by United States Public Health Service to test the mental fitness of immigrants arriving at Ellis Island, New York. Made and sold by C. H. Stoelting Co., Chicago, Illinois, U.S.A. (Stoelting catalogue # 27172). (BPS Inv. No. 0056.)


Psychology, Psychiatry & Anthropometry
Object Number:
psychological test

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