Passport Question

Two questions, actually!


1.What documents, if any, would someone have had to produce to obtain a UK passport in the late 1940's/early 1950's ?

2.If someone who hadn't been serving in WW2 joined the army and was posted abroad in 1948, would he/she have needed a passport?

Any thoughts would be welcome - I am trying to crack on with my biggest brickwall

Thanks

Joan