March 21, 1935 HMS Danae
St. Petersburg training quarters of the Braves & Yankees
(nice eBay find)
HMS Danae was a cruiser serving with the Royal Navy between the world wars and serving with the Polish Navy during World War II
1969 New York Yankees - Fort Lauderdale Fl - *
1979 Boston Red Sox - Winter Haven Fl - *
Cleveland Indians
-*
-*
-*
* - Journal of Sports Philately - Norman Rushefsky Spring 2007