Barrel: 66.1mm
Top of LH joint Bore: 14.95mm

Bottom of LH joint Bore: 14.5mm poly-cylindrical
Key work: First rate. Very sturdy. No adjustment problems.
The wood seems to be first quality also.

Intonation: This is very good intermediate intonation. I was favorably impressed by this instrument. Next time I get one of these, I will need to test pulling out a bit. The horn tends to be sharp enough from A440 to be OK in most groups, in some passages that feature throat tones, one would still want a 65 or 64mm barrel.

[2Dec2012] I see a trend with model 34s, in which the clarion register and upper throat tones are higher than the main notes in the chalemeau or upper register.

Most appropriate for: I would recommend this instrument for intermediate to fairly advanced players.

2Dec2012 #011044AII Serial marked only on RH joint at the top.

5Jun2013, #029264AII, for Dan F. Great playing instrument.

25Jul2014, #002058A, the last 0 might be a 9. This was done for Gary Cramer.