Police jiu-jitsu : also vital holds in wrestling, featuring Kato Futsiaka and Prof. Butch.

The science of “jiu-jitsu” as taught to the Law Enforcement bodies in the United States and throughout the world. Police, Marines “G” men, Soldiers, Sailors and members of the U.S. Coast Guard. Fifty-six illustrations by Seaman. New York : Book-A-Mag Co., Inc., 1940. Series: Easy Instructor. Octavo, original pictorial wrappers (a little chipping at fore-edges and head and foot of spine), pp 93, [3 advertisements], b/w line illustrations throughout; internally clean and sound, a near fine copy of a scarce instructional manual.