Bach Mt Vernon 11 with stamps

Post Reply
Euphman06
Posts: 10
Joined: Wed Mar 27, 2024 6:52 pm

Bach Mt Vernon 11 with stamps

Post by Euphman06 »

I either can't search with correct terms or am a bit thick...but I can't seem to find other Mt Vernon mouthpieces like this one? What do the extra stamps mean?

It has the number 11 on the cup, a letter F on the throat, and the number 413 on the shank.

Thanks, and hello! This is my first post, have been reading the boards thinking about purchasing and Bach 36bo, lots of a helpful information on here.
User avatar
Doug Elliott
Posts: 3380
Joined: Wed Mar 21, 2018 10:12 pm
Location: Maryand

Re: Bach Mt Vernon 11 with stamps

Post by Doug Elliott »

Sounds like it's an 11 (rim & cup) with an F throat (.257) and backbore #413.
Bach backbore numbers don't mean anything except their own tool number for the reamer. I don't remember but I think 413 was a standard backbore for some of their mouthpieces.
"I know a thing or two because I've seen a thing or two."
Posaunus
Posts: 3888
Joined: Fri Mar 23, 2018 9:54 pm
Location: California

Re: Bach Mt Vernon 11 with stamps

Post by Posaunus »

I bet Doug is right.
This sounds like a special-order smaller-cup version of a Bach 6½AM [Cup I.D. = 1.00"; Throat = 0.257" (F); Backbore #413].
Cup I.D of a standard Bach 11 is nominally 0.972" [but I have one that measures 0.992"! No one ever said that Bach was consistent.]
Euphman06
Posts: 10
Joined: Wed Mar 27, 2024 6:52 pm

Re: Bach Mt Vernon 11 with stamps

Post by Euphman06 »

Thanks!
baileyman
Posts: 1053
Joined: Fri Mar 23, 2018 11:33 pm

Re: Bach Mt Vernon 11 with stamps

Post by baileyman »

"F" would seem to b a standard index drill bit size.
User avatar
Doug Elliott
Posts: 3380
Joined: Wed Mar 21, 2018 10:12 pm
Location: Maryand

Re: Bach Mt Vernon 11 with stamps

Post by Doug Elliott »

But considerably larger than standard size for an 11
"I know a thing or two because I've seen a thing or two."
Post Reply

Return to “Mouthpieces”