[Leon]

I found some new evidence this morning (after 77 yrs) that does in fact show Burdick thought all of these were issued later but at the time he had only seen the blue captioned ones, meaning type 2 and type 3. He noted that they were similar to 521 (now T206) but issued in 1914-1915. The first reference I have to type 1s is 4 yrs later in 1946 but he still thought they were all issued in 1914-1915. Maybe if he knew the type 1s were earlier he would have put them with 206s, but I can't think of a T206 back that has another white border like that? T206 Coupons and T213 Coupons? I dunno....
Another tidbit is it looks like Burdick made T213, T214 and T215 their own sets partially because they all came with blue captions (I know 213-1 didn't) and T206 has brown ones. But once he found the brown captioned ones, and they said Coupon on back, that is where he put them.