Mason & Hamlin BB Grand Piano July 1, 2016 admin 6' - 7' Length, Brands, Grand Pianos, Mason & Hamlin Mason & Hamlin BB Serial Number: 92532 Finish: Exclusive Monticello Art Case Walnut Satin Size: 7′ Warranty: 5 Years Other pianos you might like...Yamaha U1 Upright Piano Yamaha U1 Serial Number: 4069908 Finish: Ebony Polish Size: 48" Height Warranty: 5 Years Kawai K-30 Upright Piano Kawai K-30 Serial Number: 2404186 Finish: Ebony Polish Size: 48" Warranty: 5 Years ❮ ❯