During and after the war we all had Identity Cards, which were just plain buff card, folded once (a bit smaller than a CD insert I think). No photo in them, just name and adress, that sort of stuff. The front cover had the royal coat of arms Lion & Unicorn and I think the words "NATIONAL IDENTITY CARD". I wasn't born till '46, but I remember seeing them in the top drawer where my parents kept important things like Ration Books, Birth & Marriage Certificates etc.Country Vicarages tended to be large houses, fairly well-off but certainly not fashionable. I would think you couldn't go far wrong with basically late Victorian style decor - plus of course the wireless (that's what we used to call radios then). Listening to the radio was the best way of getting news of the war.
Wassail! V