View Full Version : Bach 3C

02-03-2010, 07:48 PM
from my email today

On MP charts you see listed Old Bach 3C size (16.89mm) vs New (16.30mm).
In what period were the larger old Bach 3C sizes made?
Was it just the early NY period where you find larger cup sizes and has it been determined when in that period you find the larger cups?
I have a 30's large number 7C that does have a larger cup size?