Earlier we went downtown to the National Postal Museum, which was hosting the North American branch of the Royal Philatelic Society's 150th anniversary celebration, whose theme was George VI's 1939 visit to Washington, DC (they went through Union Station across the street, where we parked). George VI and FDR were both stamp collectors, but most of what I learned was about other historical stuff, like how mail got out of British WWII internment camps for Italians and how Persia taxed all postcards because they had to be inspected to make sure they displayed no pornographic images. The exhibit was in a small space packed with collectors who outclass any comic nerds I have encountered in their knowledge of minutiae like color variation!
