I don't know
I just compared a Dufferin joint to this one. The Dufferin has an ~1/16" high step at the bade of the male threads. When I screw a Dufferin shaft onto my cue, the threads fit perfect, but it stops about a 1/16" from mating. My butt and shaft have the Dufferin looking joint only with a flat face at the base of the male threads. The Dufferin pin is 1 1/16" long from the face of the joint, mine is 29/32". The first step on the Dufferin is 1/16" and the pilot pin is also a tad longer. The thread length is the same. So I'm thinking not a Dufferin, unless someone modified it? Were Schmelke joints identical to Dufferin?
There were no makings worn off, the cue was unmarked in 1973. The cue gets use on the snooker table. We have a weekly snooker game and, dare I admit, 3 handed golf game for the last 30 years. Wolf
I just compared a Dufferin joint to this one. The Dufferin has an ~1/16" high step at the bade of the male threads. When I screw a Dufferin shaft onto my cue, the threads fit perfect, but it stops about a 1/16" from mating. My butt and shaft have the Dufferin looking joint only with a flat face at the base of the male threads. The Dufferin pin is 1 1/16" long from the face of the joint, mine is 29/32". The first step on the Dufferin is 1/16" and the pilot pin is also a tad longer. The thread length is the same. So I'm thinking not a Dufferin, unless someone modified it? Were Schmelke joints identical to Dufferin?
There were no makings worn off, the cue was unmarked in 1973. The cue gets use on the snooker table. We have a weekly snooker game and, dare I admit, 3 handed golf game for the last 30 years. Wolf