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Couturier Helicon Project
Posted: Sat Jun 01, 2019 9:41 pm
Missing pieces here and there, but one doesn't come across these very often, eh?
Re: Couturier Helicon Project
Posted: Sun Jun 02, 2019 1:29 pm
bloke wrote:This factory was not far from Elkhart, Indiana.
The valve appearance in the picture (missing valve) strongly hints at being Conn-compatible...but who knows without trying?
Having owned a few and seen a few Cotourier instruments, the pistons are graduated in bore. The third SHOULD have slightly larger ports than the 2nd.
But I've been wrong before