Yamaha U1 Upright Piano January 24, 2017 admin 48" Height Uprights, Brands, Upright Pianos, Yamaha Yamaha U1 Serial Number: 2342946 Finish: Ebony Polish Size: 48″ Warranty: 5 Years Other pianos you might like...Yamaha U1M Upright Piano Yamaha U1M Serial Number: 3549131 Finish: Ebony Polish Warranty: 5 Years Yamaha U1 Upright Piano Yamaha U1 Serial Number: 2758118 Finish: Ebony Polish Size: 48″ Warranty: 5 Years ❮ ❯