Page 15 of the September 13, 1959 section of the "The Sunday Grit - Nation Edition" of Williamsport, Pennsylvania list an advertisement from the Clepper Publishing Company
MAKE MONEY, MAKE SOCK TOYS FOR BAZAARS
__________ Over 50 fast sellers in "How to Make Sock Toys", $1 per copy.
Clepper Publishing Co., Dept, E9, Park Ridge, Illinois
Source = PaperOfRecord.com