Yamaha U1 Upright Piano May 4, 2017 admin 48" Height Uprights, Brands, Upright Pianos, Yamaha Yamaha U1 Serial Number: 4053527 Finish: Ebony Polish Size: 48″ Warranty: 5 Years Other pianos you might like...Yamaha U3 Upright Piano Yamaha U3 Serial Number: 3706197 Finish: Ebony Polish Size: 52" Warranty: 5 Years Kawai US55 Kawai US55 #1901279 ❮ ❯