American baseball player (1887–1961). Barry managed Major League Baseball and played for the Philadelphia Athletics and Boston Red Sox. Vintage fountain pen signature, “With Best Wishes, Jack Barry, A member of the $100,000 infield Philadelphia Am. League 1910–1945,” on a beige 5.5 x 3.25 government postcard. Postmarked May 16, 1945, in Worcester, Mass. Encapsulated in a plastic PSA/DNA authentication holder. In fine condition, with postmark stamps only lightly affecting the beginning of the signature. RR Auction COA.