Yamaha C5 Grand Piano June 17, 2016 admin 6' - 7' Length, Brands, Grand Pianos, Yamaha Yamaha C5 Serial Number: 4150062 Finish: Ebony Polish Size: 6’7″ Warranty: 5 Years Other pianos you might like...Yamaha U1 Upright Piano Yamaha U1 Upright Piano Serial Number: 2331243 Finish: Ebony Polish Size: 48" Kawai US-50 Upright Piano Kawai US-50 Serial Number: 1346150 Finish: Ebony Polish Size: 52" Warranty: 5 Years ❮ ❯