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ClintHi Frank, those are some neat items.  I don't have any Kitty League material but can imagine they would be tough to come by.  Dan and I collect different minor league material and can assure you it's not easy to come by.  Even the 1950 memorabilia is scarce.  I'll be on the lookout for you though.  There's a neat season pass from the Kitty League in John Thorn's book, Treasures of the Baseball Hall of Fame, on page 120 if you want to look.
Clint