and unmodified Art Craft FDC may or may not have been used for
commercial purposes, but I'm including it here because it has a unique
stuffer that I haven't seen in any other cover. The 6-1/8" by 9-3/4"
sheet of paper inside has President Kennedy's remarks on April 9, 1963
American citizenship on Churchill on one side, and JFK's
proclamation on the other.