Rootschatters 
I have tried many, many routes to try and find his birth certificate without success. It may well be that his birth was never registered, but he would have had to prove his age when he claimed his pension in 1952.
Hi,
what was your grandfather's occupation? If he was in one of the forces, you can most certainly get through life without a bith cert
There are many ways to prove your birth age when comes down to claiming the government pension.
My grandfather was born in 1907 and his birth was never registered. He didn't need a birth certificate to get through his later life, or to claim the government pension as he joined the army before the ww2 and spent his whole working life in it .
His army id ,was enough to get him through everyday civilian form filling ID.He died in 1991 and he had two pensions, one the army pension the other the the normal gov pension. He went through his whole life without his birth being registered, he used all of his army ID and that was enough .
Just an extra thought for you
Kind regards