You are looking at an unstamped Jaguar E-Type reproduction data plate. This style measures 6.5” x 4.5”. The correct style for 1966-74 4.2 series 2+2 models and 1968-71 FHC and DHC and series 3 Roadster. Do your own research before buying. These plates are currently unavailable at the through the aftermarket. Here is you chance to get one.