Yamaha U1 Upright Piano July 12, 2018 admin 48" Height Uprights, Upright Pianos, Yamaha Yamaha U1 Upright Piano Serial Number: 4176441 Finish: Ebony Polish Size: 48″ Other pianos you might like...Yamaha U1 Upright Piano Yamaha U1 Serial Number: 1932635 Finish: Ebony Polish Size: 48" Warranty: 5 Years Yamaha U3 Yamaha U3 #3251112 ❮ ❯