resources on warehouse vintage finds, etc.?

[Maris61]

Hi all,

I've returned to collecting somewhat recently. Like some, I collect only what I can easily afford (no Mantle RCs for me, thank you very much)--and, more importantly, what I like.

Lately I encountered a few sets that neatly fit these criteria: 1933 Sanella (w/ the comparably inexpensive but lovely Ruth card), the 1958-65 Jay's Publishing photos/cards, and 1976 Isaly's Sweet William discs. . . . BUT cursory research shows that one thing these have in common is an affordability due either to market flooding (Sanella) or relatively recent warehouse finds (Isaly's & Jay's). . . . I also learned about '51 Topps red backs being such a find back in the '80s.

Does anyone know of other such sets--"vintage" (i.e. pre-1981) yet affordable b/c of old stock newly discovered? Are there some recommended resources that cite or report on such finds?

Thank you for any help!