Here’s a 1936 info booklet from the U.S. Department of Agriculture with 30 pages of info about ROOF COVERINGS for FARM BUILDINGS and THEIR REPAIR, and a 24-page booklet from 1940 called “PRODUCING WILDLIFE by GOOD FARM LAND USE”, from Michigan State College, now called Michigan State University. Payment with $3.75 shipping/handling to the USA only. No International shipping.