Did the design of the tenon-mortise connection in Amboseli Meerschaum pipes change dramatically over the production life of the pipes? Until recently, all of the specimens I had seen used a threaded tenon-mortise connection in which the tenon was metal. Just the other day, though, I saw one that had a "reverse tenon" set-up in which the metal tenon protrudes from the shank and the mortise is cut into the stem. At first I thought the tenon was simply stuck in the shank and had pulled free from the stem. Further examination, however, suggests that the pipe was not broken, instead having an actual "reverse tenon" design. Has anyone else seen this version of the tenon-mortise connection in an Amboseli pipe?