This is a Series 65 Jaguar 3.4 Litre Saloon in near mint condition with an original and very rare "C" box.  

The car is red metallic with silver wheels and is in near mint condition.  The "C" box is in very good condition.  Note that the end flaps say "New Model" indicating that the car is an early variant of this series. 

Please see all the photos to make your own assessment.