Have seen this Stengel auto'd card a few times on ebay, I've NEVER seen a Stengel autograph like this, so sharp and crisp. Was the sharpie used for the auto even around before 1975, the time of Stengel's death? This is not an attack on the seller, who may or may not be a member, I'm just very leery of the autograph.

http://www.ebay.com/itm/CASEY-STENGE...item460f95965f