JAGUAR 18K Golden Crested Car Key.

Hello I have this Jaguar key with key ring all 18k golden plated.
The key is uncut. The packing it comes in along with a card with details is rather tatty, my assumption is that this item is almost 50 years old as it says the key can be resent to the manufacturer Bellfax limited a company which no longer exists and they would have matched your key number to cut to match for the cost of 4d stamp.
A possible collectors items for original Jaguar Mark 1 owners.