Hi grumpy, I had an ATCO model 1451 back in the late 60's that had a long round muffler with a smaller tube sticking out one end. This was slightly squeezed at the end almost like a fishtail...
Please do not PM me asking for support. Please post your questions in the appropriate forums, as the replies it may receive may help all members, not just the individual member. Kindest Regards, Darryl