Written on the back of the card......."All the different cups. Menominee, Mennikaune, and  NIYA [Northwestern Ice Yachting Association]. The big one in the center is the World's Championship Cup [that] 'Square People' put up and won."
(Webmaster's Note: My father, Skeeter pilot Dave Rosten, won the big center trophy  when I was a kid. That beautiful trophy made a great basket for Nerf basketball games that my brother and I played when we had it in our living room.)