Yamaha C5 Grand Piano December 2, 2016 admin 6' - 7' Length, Brands, Grand Pianos, Yamaha Yamaha C5 Serial Number: 4260079 Finish: Ebony Polish Size: 6’7″ Warranty: 5 Years Other pianos you might like...Yamaha U3 Upright Piano Yamaha U3 Upright Piano Serial Number: 4017994 Finish: Ebony Polish Yamaha U1 Upright Piano Yamaha U1 Serial Number: 2370898 Finish: Ebony Polish Size: 48" Warranty: 5 Years ❮ ❯