6. Alperman (Print Group 1)
Discoveries:
T206 Sweet Caporal > Factory: 15 (5 not cataloged due to blurriness)
T206 > Factory: 11 (6 Piedmonts, 2 were too blurry to read)
Lots of 649 Overprints here.
The PSA population report shows 21 copies (which we know is incomplete), but I found 22 alone in the 70 PSA slabs I looked at. Some of the 649OPs look to be a lot more populous than others, will be interesting to see if that plays out as I go through all 34 cards in the sub-set