WTB: T206 Frank Chance Yellow Port. Back Variations

[Harford20]

Just a last request for helping identify the backs for the Chance Yellow Portrait.

However, based on data from Ted Z......

At last count, we had 301 samples of the T206 red Cobb. And 8 other white-bordered red Cobb's. The final tally is listed below.

The new info garnered from this (and other) surveys is that American Litho. did NOT print this Cobb with a UZIT back. In fact, none of the 6 super-prints in the T206 set are found with the UZIT back or the American Beauty 460 back. However, these six subjects can be found with virtually every other White-Bordered Tobacco back that was issued from 1909 - 1919.


Now I have to question if my Chance list of possibilities is correct. I have used only my own visual confirmation of cards from auctions, ebay and shows to confirm my list of 25 back variations, but if the Uzit does not exist (and I already had it marked off as a "true" variation), then there must only be 24 variation possibilities.

Any confirmed Frank Chance Yellow Port Uzit backs out there? (or others on my original list?)

Thanks