Hi Pat
Very interesting, thanks for posting your scans.
Especially, the horizontal strip of 15 cards which includes the ten 150-only subjects and Schulte....but, not Powers.
Can I assume that this scan appears to support my thesis stated in post #1 and post #12 ? ?
Also, I guess any kind of PIEDMONT 150 plate scratch information on Plank and Wagner is obviously not available.
Sorry that my Schulte doesn't have any plate scratches to match with your's.
.
Incidentally......
Regarding the Waddell portrait card, I've always wondered why this card is the only one in the 150 series with
a deep Blue background (similar to the 350 and 460 series cards) ?
All the other Blue background cards in the 150 series were printed with a pale or lighter Blue color.
150 series....................................350 series
TED Z
T206 Reference
.