Yamaha GB1 Grand Piano October 16, 2017 admin 5' - 6' Length, Brands, Grand Pianos, Yamaha Yamaha GB1 Serial Number: 2318422 Finish: Ebony Polish Size: 5′ Warranty: 5 Year Other pianos you might like...Kawai NS-10 Upright Piano Kawai NS-10 Serial Number:1510749 Finish: Ebony Polish Size: 48" Warranty: 5 Years Yamaha U3H Upright Piano Yamaha U3H Serial Number: 2671645 Finish: Ebony Polish Size: 52" Warranty: 5 Years ❮ ❯