I picked up a strange pipe that I hadn't seen before. There is no maker's mark and the patent # tracks back to a Rosario Crisafulli in 1958 out of Jamaica Plains, NY. It's a strange little pipe. It's basically a Canadian but the shank is detachable and it's ventilated with a balsa wood filter inside. Does any one now anything further about who made this pipe? It screams something associated with the economy pipe/gimmicks that Kaywoodie, Medico, etc. would have done.