I've tried posting this on some creaky leather armchair forums but had little success so I thought I'd try it here. I have an Army Signals, Despatch Riders Docket bearing Winston Churchills signature. The docket was obtained by my father who was a Sgt in the Royal Signals during the war. Its date stamped 1945 but the month is obscured. My father believes it was around Sept/Oct of that year. The story is that Churchill was visiting some dignitaries (possibly members of the Italian Royal Family) near Lake Como and had a tea set sent from the UK as gift for them. The tea set was sent through the military postal system and arrived at the signal office run by my father. He instructed the despatch rider that the package had to be signed for by Churchill himself. The despatch rider duly returned with the aforementioned signed docket which my father kept as a memento. My questions are: If this is Churchills signature what would be an approximate value? How and where could I have the document authenticated? Where would the best place to sell something like this?