I served 24 years in a 25,000 college town in N MO from 78-2002. Had a sap pocket and carried a sap. It sits atop a case of my old badges etc. I took it down to look at it after looking at his thread. It's a Bucheimer and is 11 inches long. I think they called it the big John or long john?

Never hit anyone in the head but will attest if some one grabs onto something / someone and doesn't want to let go, a shot on the back of the hand will convince them to let go' post haste.