Yamaha U1 Upright Piano April 3, 2017 admin 48" Height Uprights, Brands, Upright Pianos, Yamaha Yamaha U1 Serial Number: 3413511 Finish: Ebony Polish Size: 48″ Warranty: 5 Years Other pianos you might like...Yamaha C1 Yamaha C1 Bosendorfer 190 Grand Piano Bosendorfer 190 Serial Number: Finish: Ebony Polish Size: Warranty: 5 Years ❮ ❯