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I've decided to let this beauty go. It's based on a York Master (B&M/Nirshl) BBb with an original Grand Rapids York 19.5" bell. The bore size is .749". It has a great classic American sound with super projection and very even response. If you're looking for a horn with larger bore horn than the usual .687" from us, you'll like this one. $5750. (Still needs some clean up in the picture.)

Hey man that is a really nice horn. you wouldn't be comming to the cleveland area in the next couple of weeks would you.

This horn's still available.

that's a neat configuration for the 5th valve