I just picked up something that I've always wanted to get, as a 1c collector - a Ty IIIA plate 2 stamp, legitimately broken at the top, cleanly. This qualifies it as a Ty IIIA.
It is position 19R2, which now needs to be classified as a swing position II-IIIA, clearly. Neinken even noted that it was 'weak' at the top.
Neinken calls out 198 positions on plate 2 as Ty II, leaving 99R2 as Ty III and 100R2 as a swing II-IIIA (but broken at bottom).
There are a few of these plate 2 8A's out there - not many, but a few that I've seen over the years. They are rare items. Neinken did not document any IIIA positions, other than 100R2. 100R2 becomes broken at the bottom only, and only then on very late impressions. I've seen very few 100R2's that qualify as IIIAs.
The fact that this item came with 4, count-em '4' certificates 2xPFC, 2xPSE, ALL calling this a #8A, and even plated correctly, probably illustrates the fact that to go against Neinken, it helps to have a cert. Well, this has 4.

From the scan, I think its pretty obvious, however.
jaxom - Rick - maybe there's a way on the stampsmarter database page, to note somewhere that there is updated "Type" information for a position or positions? Neinken would usually do it either en-masse for the entire plate, or call out each individual position by type in the drawing ...