Without naming names and puting two and two together. The letter comes with an envelope with the mark of the "First Lord of the Treasurer" on it and 10 Downing Street. The person who it is addressed to was a magistrate in Nottingham during WW2 and a provider of war time equipment(mosquito and camo nets) so quite a big cheese. It was usual throughout the war for each County to send Churchill a letter on his birthday wishing him well and was posted up in the local papers. Churchill being the person he was liked to reply to everybody in person thus the letter after his birthday on the 30th of November.
I feel slighlty blessed to even come across something like this let alone hold it in my hands. And yes it will go in pride of place in a fitting frame.