Prof. Heckler's "PULI-COLOGY" (16 Pages)
William Heckler's 16-page pitchbook covered in silver foil from the 1933 Chicago Century of Progress titled on inside "PULI-COLOGY, Copyright 1915". With 4 small performing flea illustrations, and a PROGRAM on the last page. While the 1915 date is printed inside, there is no evidence that this pamphlet was published before 1933. William Heckler left Hubert's Museum in 1933, leaving his son Roy in charge, in order to perform at this world's fair which ran from 1933-1934.
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