This is an interesting piece in that it has an early Tonemaster body style yet shows a later 3 digit serial from the ‘improved’ model. On the opposite side the normal Patent stamps are missing. I am wondering if this was a prototype or transition to the improved model? Anyhow it’s been refaced to 0.96. Someone has installed a wedge baffle that I removed and did some minor cleanup as well. This piece has a lot of potential, could use a little work.