Mario Andretti 1978 Dutch GP mounted original pencil sketch signed by the artist

A superbly detailed original hand drawn pencil sketch of Jody Scheckter driving his Lotus 79 car to victory at the 1978 Dutch GP closely followed by teammate Ronnie Peterson. The sketch has been signed by the artist and comes in its original packaging with the artist certificate of authenticity. The drawing is pre-mounted ready for framing and measures 11″ x 14″. Reference: PRI-DJJSCHDUT78-01