I hope Johnny doesn't mind, but
he found an Ames Portrait factory 25 at the Philly Show; he recalled previously owning an Ames Portrait with the 30 at the bottom, but had sold/traded it. However, I found another Ames Portrait on cardtarget.com that showed factory 30 at the bottom.
This would leads me to believe in the probability that the sheet layouts may have been identical between factory 25 and 30, realizing that the Plank card was replaced at some point during the the printing of the thirties and not included in the twenty-fives (I believe this is the one difference between the subsets).
I will update Jantz's list here for the "Huge Factory Number" 30; there are currently
13 14 known:
- Ames (port)
- Beaumont
- Cobb (bat on)
- Durham
- Gilbert
- Johnson (port)
- Killian (pitching)
- Mathewson (port)
- Merkle (port)
- Overall (port)
- Spade
- Steinfeldt (port)
- Tannehill ("L" on front-Chi.)
- Wagner (bat left)