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 U2 Upright Piano Yamaha U2 Upright Piano Serial Number: 3937819 Finish: Ebony Polish Kawai US50 Kawai US50 #1432472 ❮ ❯