Here is what Dave and Jim are referring to......
Shown here is actually the "A-B-C-C-D" version which includes the 1910 COUPON back.
My theory is....that these backs were drawn by the same T206 artist in the Spring/Summer of 1910. Therefore, we can date
the marketing of these cards to the Summer/Fall of 1910 since we have American Litho. records that reveal that the T206's
with this AB 350 back were issued in the Summer of 1910.
TED Z