Posted By:
Todd Schultzthere have been a few discussions here about R315 over the years--you may want to try the search function, although your specific questions may not have been addressed. Anyway, here are some things I know, most or all of which I believe has been shared here previously.
The cards were issued over a period of a few years, not just in 1928 and maybe not in 1928. There are 4 types, well shown in Old Cardboard at http://www.oldcardboard.com/r/r315/r315.asp?cardsetID=873, and can be found with yellow stock more infrequently than white. They are about Exhibit size and are sometimes categorized as Exhibits, although the stock is thinner and they were not issued by ESCO. They are often found with poor centering and less than precision cuts. The Vance card usually carries a thumb-sized smudge in the middle, and the Hornsby can be found with noticeable-looking "cracks" where the printing plate was scratched.
The set is chock full of HOFers, and many of the poses are pretty cool. I believe that some of the cards are scarcer than others--the type C and D's. I also believe that like all pre-war issues, this set has a nice future over at least the short term of 2-3 years. As for your question whether the PSA 5 Gehrigs have been re-submitted, who knows? Seems to me that bumps are important to those who either have a registered set they want improved or by sellers looking for extra $$$. There is very little registry activity with this set, and although a 6 will generally and logically sell for more than a 5, these cards are so tied into eye appeal for value that I doubt the number on the slab has much play, at least at the sub-7 levels.
Finally, my guess is that this set was issued regionally, although it may have been issued in more than one place, at least over time. Just a guess.