Open Assault shows Hurricanes attacking Ju87 Stuka dive bombers. The Stuka up to the Battle of Britain had gained a reputation as almost invincible. Up against RAF Spitfires and Hurricanes it was chopped from the Sky. 

The slow Stuka was an easy kill forcing the Luftwaffe to provide close escort and limit the use of the Ju87 during the battle. The print shows Stuka's over Dover being harried by Hurricanes as Me109's attempt to protect them.

The print is signed by RAF and Luftwaffe pilots including Tony Pickering, Gunther Seeger, Eric Rudorffer, Johannes Steinhoff, Gunther Rall and Hans-Ekkehard Bob.

The matted original drawing includes in the matting the signatures of Hans-Ulrich Rudel and his wingman Helmut Fickel. In the matting are the signatures of three more highly decorated Stuka pilots, Franz Kieslich, Kurt Kuhlmey and Hans-Karl Steep.