HO Scale Model Flakpanzer Coelian Prototype with Brass 37mm Barrels and Resin TurretFlakpanzer Coelian Prototype with Brass 37mm Barrels and Resin Turret makes your HO scale Panther tank kit into a late war anti aircraft gun. The Coelian got as far as wooden mock up stage when the war ended. With an enclosed turret and twin 37mm guns this vehicle would have made life difficult for low and medium level Allied tactical ground attack aircraft. This kits works well with the Trident or Heiser model HO scale Panther tank hull, not included.