Yamaha U1 Upright Piano May 5, 2017 admin 48" Height Uprights, Brands, Upright Pianos, Yamaha Yamaha U1 Serial Number: 1864271 Finish: Ebony Polish Size: 48″ Warranty: 5 Years Other pianos you might like...Yamaha C1 Grand Piano Yamaha C1 Serial Number: 5788009 Finish: Ebony Polish Size: 5'3" Warranty: 5 Years Yamaha C5 Grand Piano Yamaha C5 Serial Number: 5504066 Finish: Ebony Polish Size: 6'7" Warranty: 5 Years ❮ ❯