Yamaha U3 Upright Piano March 19, 2018 admin Upright Pianos, Yamaha Yamaha U3M Upright Piano Serial Number: 3593862 Finish: Ebony Polish Other pianos you might like...Yamaha C1X Grand Piano Yamaha CX1 Serial Number: Finish: Ebony Polish Size: 5'3" Warranty: 5 Years Yamaha U1 Yamaha U1 #3436106 ❮ ❯