Posted By:
MikeHi Paul,
I can confirm F Smith, Sullivan, Wallace, Wingo, Wood, Zeider. I have scans of most.
Additionally, some not classified as the "second series" also show up with Anon 3 back, e.g. Art Fromme and Ed Hallinan. I think both of those would have been borderline in that group.
I also have reference to having seen a Wolverton with that back in an auction last year... unfortunately I don't have the reference or a scan.