Posted By:
Steve Murrayyou raise an interesting question regarding the "key card" in various sets. Without regard to condition each set likely has a recognized "key". My contributions might be:
1911 Zeenut Bohen;
1912 Zeenut Bancroft;
1913 Zeenut Heilmann;
1914 Zeenut Calvo;
1915 Zeenut McMullin, (Risberg and Williams running a close 2nd and 3rd)
1919 Zeenut Arbuckle
1922 Zeenut Thorpe
1911 Obak Weaver