Yamaha U1 Upright Piano December 2, 2016 admin 48" Height Uprights, Brands, Upright Pianos, Yamaha Yamaha U1 Serial Number: 3579704 Finish: Ebony Polish Size: 48″ Warranty: 5 Years Other pianos you might like...Yamaha U1 Upright Piano Yamaha U1 Serial Number: 2758118 Finish: Ebony Polish Size: 48″ Warranty: 5 Years Yamaha C5 Grand Piano Yamaha C5 Serial Number: 5504066 Finish: Ebony Polish Size: 6'7" Warranty: 5 Years ❮ ❯