Quote:
Originally Posted by RCMcKenzie
This is the "Burdick said" these are T206's theory. I think it's okay to use his nomenclature, but I keep my Piedmont 150's in a different box than my AB350NF's.
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I don't think it's just Burdick said". 150 and 350 are different series, but they were considered a set by the makers. There are clearly different sets of T cards. Sometimes drawing the lines can be murky for certain issues, but Burdick did not just make these sets up. The lithographers and American Lithography clearly thought of them as individual sets, as their surviving records tell us.