Martin Committee bore?

trumpetdoc · Regular Member Joined: 11 Oct 2004 Posts: 34 Location: NYC

Hi all,

I recently acquired an early 50's Martin Committee. I know that there are 3 bore sizes. Are there markings on the trumpet indicating bore size? Or does it have to be measured and where?

Thanks for your help,
Leon

Zman · Posted: Sat Oct 29, 2016 2:29 pm Post subject:

Hello, usually on the side of the valve block above the serial number. (Stamped 1, 2 or 3) If there is no number there it's likely the Medium bore. 453 model.
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trumpetdoc · Regular Member Joined: 11 Oct 2004 Posts: 34 Location: NYC

No number there. Should be a medium bore then. Thanks for your input.

bg · Posted: Sat Oct 29, 2016 3:28 pm Post subject:

Early on (pre-war) #1 was often marked "M".

#1 (M) = .438 bore

#2= Dual bore, .438/.453

#3= Dual bore, .453/.468
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Brad Goode
www.bradgoode.com

allchops1 · Posted: Mon Jan 20, 2020 11:35 am Post subject:

I have a 1945 - #151121 - No other numbers. What is it?
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Tony Gambaro
Dr. Valve Schilke S42
1945 Martin Committee
Northern Brass 63***
Warburton 9ES - 28 Hole - NY Backbore

OldSchoolEuph · Heavyweight Member Joined: 07 Apr 2012 Posts: 2441

1945 was a unique time for American brass making with all of the makers desperate for materials and skilled labor. (Bach made some wild combinations, because he was salvaging parts from trade-ins!). Martin transitioned from the first generation Handcraft Committee to the more familiar, looser slotting, second generation at this time - so it is not even certain which you have without seeing it. The odds are, but by no means certain, it will match the pre-war Handcraft Committee in core construction, but the only way to really know the bore for certain is to measure the upper leg of the tuning slide's inner diameter, and the same on the second valve slide.
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Ron Berndt
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2017 Austin Winds Stage 466
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1954 Holton 49 Stratodyne
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1965 Besson Baritone
1975 Olds Recording R-20

allchops1 · Posted: Tue Jan 21, 2020 4:41 am Post subject:

Thank you... Once I receive the horn I'll let you know!
Tony

yourbrass · Posted: Tue Jan 21, 2020 8:08 am Post subject:

stephan · Posted: Tue Jan 21, 2020 8:23 am Post subject:

Mine, serial number #154xxx without other number stamped on valve bloc is a #2 bore 0.453.
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2018 Bach 19043 (Kanstul CG3)
2006 Getzen Capri cornet (Kanstul CG3)
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