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.