Over the years I have received thousands of QSL cards, I have several rare cards, a card from a CW QSO with Barry Goldwater K3UIG while he was at his ham shack in D.C. as well as Auther Godfrey but the one below takes the prize for most unusual. I received this when I was a young SWL from Radio Habana Cuba around 1960. Castro decorated as a black Christmas tree while armed with a rifle and a decorated Christmas tree when opened.