Yamaha U1 Upright Piano June 17, 2016 admin 48" Height Uprights, Brands, Upright Pianos, Yamaha Yamaha U1 Serial Number: 3678697 Finish: Ebony Polish Size: 48″ Warranty: 5 Years Other pianos you might like...Yamaha U3 Upright Piano Yamaha U3 M Upright Piano Serial Number: 3296901 Finish: Ebony Polish Size: 52" Yamaha U3 Yamaha U3 #4236713 ❮ ❯