T213-1 could be classified as a T206, and certainly fits the mold as far as size and surface finish even more so than American Beauty and Cobb Back. If not for the subsequent issue of T213-2 and -3, a T213-1 coupon back would more than likely have been only known as just another super rare T206 back.
Burdick cataloged his tens of thousands of cards some 80 years ago, without the help of internet, national card conventions and the far reaching arms of today's media. To think that Burdick, if he were alive today, would have the arrogance to think that he could not have made any mistakes, or that he would not have wanted or accepted updates/corrections to his ACC based on 8 decades of new finds, research and debate, is hard for me to believe.
