Anyway, this is a silver-plated, four-valve F tuba marked "Adolf Oehms - Hannover." Adolf Oehms owned a music shop in Hannover and this is likely a stencil instrument. According to Tom McCaslin, who used to own this tuba, "it seems it was made between 1920 and 1940 in Mainz by Max Enders or possibly in Markneukirchen." The brace feet definitely seem Alexander-y to me, so maybe the Mainz connection makes sense. Valves are nice, rotors not worn at all, beautiful sound. Extra large Alex-ish receiver engulfs Euro shanks, but they do work in the horn (it is much bigger than the large shank on my Alex F). The bell is 15" and the bore is 18mm / .708". The size of the body is about the same as a Miraphone 180 or MW 2182.
I have a Miraphone valve here of the same bore, but I hate to start hacking and slashing to add a fifth and mess up the really nice (what I am assuming is original) silver plate.



