Steinway M Grand Piano September 21, 2016 admin 5' - 6' Length, Brands, Grand Pianos, Steinway Steinway M Serial Number: 304257 Finish: Ebony Polish Size: 5’7″ Warranty: 5 Years Other pianos you might like...Kawai K50 Upright Piano Kawai K50 Upright Piano Serial Number: 2376154 Size: 49" Finish: Ebony Polish Kawai RX3 Kawai RX3 #2357979 ❮ ❯