Official National League (Heydler) baseball signed in black fountain pen by seventeen members of the 1934 World Champion St. Louis Cardinals, including D. Dean, Haines, Frisch, Medwick (sweet spot), Vance, Durocher, Martin, P. Dean, Collins, DeLancey, Carleton, Rothrock, Davis, and Worthington. The year, 1934, is written on one side panel, while an additional black-ink notation (in an unknown hand), that includes the date, Sept. 23 1934, appears on a separate side panel. Signatures range from 1/10 to 5/10, averaging 3/10. Excellent condition. Full LOA from JSA.