I know we have recently had discussions about maces, blackjacks, saps, and walking sticks. However my question deals with the precursor of the modern day telescoping baton, THE SPRING COSH. Since they preform slightly differently than all the previously mentioned devices, does anyone know any specific techniques for deploying them? I seem to recall a section in I think "Get Tough" that dealt with these during WWII. As I recall you would approach an enemy sentry from behind and smack him over the helmet. The spring tip would go over the brow ridge and tag the sentry square in the forehead for an immediate T.K.O. I ask because I recently purchased a couple for my East German militaria collection and am now intrigued.