I know 1991 Fleer is the more click-baity set, but how many of you sent in for one of these 1992 Fleer "limited-edition" Rookie Sensations promotional sheets?

How about this for some amazing auction history: A group of eight uncut 1933 Goudey proof sheets from The Official 13th Annual National Sports Collectors Convention Auction, July 8-10, 1992.

A couple of older hobby periodicals have so much alpha that I recommend completing the back issue runs to everyone. One example is Topps Magazine; sure, it had a lot of self-advertising, but it also had great pieces like this one about Topps' Non-NFL sets.

GM It was a big-time hobby event in the spring of 2009 when REA sold the nicer of the two known 1915 E145 Crack Jack Advertising Posters for $152,750. The lot's description said it had never been sold before at auction, but Goober's seems to have offered it in their September 1991 catalog.

One of the rarest team-issued photo sets, the 1950 Pittsburgh Pirates Picture Pack is a 26-photo gem, with several images used as the basis for 1951 Bowman cards. Kiner is the set's highlight, but its original envelope is rarer and nearly impossible to find.

Here's another great mid-90s article from Sports Cards Magazine about the unopened collecting niche; this one from Doug Koztoski includes info from Mark Murphy, the Baseball Card Kid.

After REA sold a 1954 Topps One-Cent Wrapper for $480 last October, I wondered if there were any complete packs out there. Yup, here’s an example Mastro offered for sale in April 2006.