Yamaha U1 April 9, 2019 admin 48" Height Uprights, Upright Pianos, Yamaha Yamaha U1 #2696936 Other pianos you might like...Yamaha U1 Upright Piano Yamaha U1 Upright Piano Serial Number: 4176441 Finish: Ebony Polish Size: 48" Knabe Grand Piano 5'2 WALNUT EXCELLENT CONDITION RICH PROJECTING TONE ❮ ❯