Erik Spiekermann turns 72 on May 30—so we've assembled a modest showing of Dutch postage stamps by this award-winning German designer. How did a German come to design Dutch stamps? And isn't it unusual that more than one subject (in this case, more than one sport) would be featured on a single stamp? Get answers to these and other questions during the month of May (and one day in June) when you can see his stamps as closely as your nose will allow. (No licking, please.)