Identity Card - Original 1947 Issue:

Correct ! You have chosen the real 1947 issue identity card. The other is a modern reproduction and being new has a lighter colour than the sixty year old original. The card used in the reproduction is also slightly lighter in weight but otherwise is a very good copy. Perhaps with some ageing, the choice would be harder.
This identity card belongs to my mother and has survived these past sixty years with out any damage. As it doesn't have any provision for a photograph, or fingerprints or any physical detail of the holder you do wonder just how useful these cards would have been to the authorities. 
The identity card scheme, accepted during the war was not popular after the war and eventually abolished by Winston Churchill in 1952.