I think one has to remember what information was available to him at the time he was organizing the ACC. Obviously, nobody had done the type of research that the T206 crowd has done over the last 20 years so all of that was not known to him, so the fact that the checklist of T213-1 doesn't really jive with any particular "series" of T206's wouldn't have mattered at all to Burdick--otherwise E92 would have been broken down to many different #'s as some of the manufacturers made different players (that wasn't part of his understanding/intent IMO).
The paper stock is correctly id'ed as "heavy paper" (as oppsed to tissue paper, or typing paper, etc.) as sure it is thin but compared to most "paper" it was relatively thick--so he was correctly describing the stock as "heavy".
I have no doubt had there not been the other t213 sets they would have been grouped as a T206 set by him--that was his MO with the rest of the ACC. However, had he done that today we would be having debates about why T206 Coupon should have been given their own ACC designation because the checklisting doesn't allow them to fit nicely into any "Series" or "chronological" order (like the rest of the T206 brands do).
