Description:Leo "Gabby" Hartnett single signed baseball c.1926-32. Uncommon and desirable playing career example is signed in black fountain pen across the sweet spot. Signature displays beautifully rating 8 out of 10. J.Heydler NL ball appears to be unused with only some minor surface toning. One of only a scant few playing career examples that we have encountered. Includes LOA from JSA: Ball: EX-EX/MT, Signature: EX/MT-NM