Demo Willson Merlin CC tuba (SN: W8816)

Demo Willson Merlin CC tuba (SN: W8816) in silver, no case.  17.25" upright bell and 4 front action pistons of .748/.787? bore with right thumb operated 5th rotor valve.  Mouthpiece receiver is a deep American shank that will also accept an Euro shank.  Nearly new tuba picked up a small ding the top branch while on display at a conference.