Yamaha C3 Grand Piano March 29, 2017 admin 6' - 7' Length, Brands, Grand Pianos, Yamaha Yamaha C3 Serial Number: 4218040 Finish: Ebony Polish Size: 6’1″ Warranty: 5 Years Other pianos you might like...Conover Cable Upright Piano – Oak Oak Conover Cable with 5 Year Warranty. Beautiful condition with an excellent tone and action. Yamaha U1 Upright Piano Yamaha U1 Serial Number: 3492559 Finish: Ebony Polish Size: 48" Warranty: 5 Years ❮ ❯