These are a set of decals that (mainly) are fitted to the airboxes of the Jaguar V12 HE 5.3 engine.  The oil decal is fitted to the cam over and the Air Con charge weight sits on the compressor.
 
All are produced the the correct design and size and on a perfect match for the original colour (a metallic grey) of the material that Jaguar's supplier used at the time.
 
Packs available for
PreHE
HE Lucas
HE Marelli
6 Litre and XJR-S