I've followed this thread and kept track of various clues that could help put these sheets together. Pat has speculated (and I agree) that there were different press runs during the Piedmont 150 phase. To the best of my knowledge, none of the two-namer cards have plate scratches, but there are known two-namer subjects that have plate scratches.
Following is the list of
Piedmont 150 two-namers that are known, but to the best of my knowledge, none of them have plate scratches. I think I have a few of these images/cards at home, but can anyone else provide backs of any of these cards?
Those that are red bold have images below (12/20 images; none have plate scratch):
Beaumont - Seymour
Bender (port.) - Delehanty (Wash.) [there are two of these]
Bergen (bat) - Dooin
Brown, M (port.) - Magee (port.)
Bradley (port.) - Bender (port.)
Devlin - Schulte (front view)
Hinchman, B. - Stovall (port.)
Jennings (port.) - Jordan (port.)
Johnson (port.) - Schlei (catching)
Konetchy - Jennings (port.)
Killian (pitching) - Chance (red port.)
Lindaman - Bresnahan (port.)
Lundgren (Cubs) - Doolin
Lundgren (Cubs) - Ball (New York)
Manning (batting) - Flick
Pastorius - Lake (NY, throw)
Powell (horizontal) - O'Leary (port.) [there are two of these]
Shipke - Griffith
Spade - Cicotte
Walsh - Seymour (batting)