Are the "T213-1" (1910 COUPON) cards really T206's ? ....I think so....What say you ?

[Exhibitman]

Originally Posted by Leon

there aren't other white bordered cards (I could be wrong but don't think so) with a 206 back brand that has another catalog number too.

Perhaps not but there are different ATC issued T sets from the era that share brands:

--Cycle (T205, T206, T207)
--Mecca (T201, T218, T220)
--Hassan (T202, T205, T218)
--Honest Long Cut (T205,T219, T227)
--Polar Bear (T205, T206)
--Sweet Caporal (T205, T206)
--Tolstoi (T206, T218)

Why not group by brands and then classify each as a separate subcategory? Because Burdick didn't. That's all. He made a decision based on the data he had. Andrew's explanation seems to be very well thought out and credible. The effect of the ATC breakup on card production is the best explanation for why the -2 and -3 types are so different from T206.