This is a Heller 1/72 Scale Model Plastic Kit of a British Supermarine Spitfire Mk XVI  E.  This aircraft was basically a clipped wing version of the Spitfire, sacrificing maneuverability for speed. The .303 machine guns in the wings were dropped in favor of 20mm Cannons for more "punch".   Most variants were powered by Packard-produced  Merlin engines.

This is Heller kit #282, and the box has been opened, but the kit contains all parts, plans, and decals.