This is an original condition Ted Klum "Acoustimax" alto mouthpiece. This piece measures .085" on my gauge.
Ted began designing and producing his revolutionary Acoustimax design sometime around 2008-9 and they started appearing more and more by 2010. Made from a high tech, very difficult to mold polymer it was the first alto design to feature a conical chamber in a nearly unbreakable material.
When players wanted something more custom made they had the option to have Ted open their piece to a larger size than what was offered. This piece features a full voice with a nice 'cut' due to Ted's signature baffle and tip work. No longer produced!