Posted by Walter on January 31, 2000 at 00:06:46:
I'd like to know more about the WALTER SEAR TUBA. The one that I have is in the key of BB.4 rotary valves.The bore size is unknown,maybe 795. Looks like the Cerveny model 681.Seems to me that is about 40+ years old. Any comments on this particular model would be very helpful!