Yamaha U1 Upright Piano September 11, 2017 admin 48" Height Uprights, Brands, Upright Pianos, Yamaha Yamaha U1 Serial Number: 2442054 Finish: Ebony Polish Size: 48″ Warranty: 5 Years Other pianos you might like...Yamaha U3 Upright Piano Yamaha U3 Serial Number: 4815437 Finish: Ebony Polish Size: 48" Warranty: 5 Years Yamaha UX1 Yamaha UX1 #3678418 ❮ ❯