This is original IH International Blue Ribbon Service Training Catalog for Engine Valves on Farmall Models: A B H W4 M W9 F30 and many more. (date code of 4-2-46). It's got stains on the cover and a few on the inside pages and the covers and inside pages have rough edges, but very readable and useable. This is an original manual, not a copy. It's about 36 pages long.