Very rare Yamaha YD-900 (9000series)made in Japan 1970s.
early model from mid 1970s.
Silver badge and 100% high quality Japanese Birch shells.
with 6-ply the snare drum and toms , and 8-ply the bass drum
sizes: 12"x8 tom, 14"x10 tom, 18"x16 floor tom, 24"x14 bass drum
14"x 7 snare drum