| The best way to answer this question is to steer you towards the Kanstul website and you can compare them on the mouthpiece comparator. They are similar in size, but are quite different.
As the times changed, Mr. Bach would rethink his original designs and change them and as there were no computers controlling the lathes and making the minute adjustments as the tooling wore down, there would be differences in the same model number.
Bud Herseth was using a NY Bach 7 (7B, I think) when he won the CSO principal position in 1947. |