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Does anyone make a 4-valve fiberglass sousaphone?
Thanks.

Harvey Hartman of Harvshappyhorns is the best man to call. He can make you one really easily.

Bloke has one already made and "blinged up" but he may not want to part with it.

I saw a 4 valve Conn 22K once (short action). Don't know if it was custom or if they actually did make a few of them..I don't know what the model number would be.