Mastro offered a complete set of 96 1934 Goudey cards in their November 2000 auction. That's a cool enough set on its own, but what set the lot apart was the inclusion of the two albums Goudey produced to house the 1934 production. 
Here's a really cool item from Mastro's Classic Collector Auction in June 2006: a 1947-66 Exhibit Baseball unopened partial cello box of 25 packs. 
One of my favorite things from back issues of The Trader Speaks is seeing all the game's greats who were regular signers at card shows. Brooklyn's second Baseball Card And Sports Memorabilia Show had Cal Abrams, Gene Hermanski, and Billy Loes! 
Mastro offered this 1976/77 Topps basketball unopened vending case in their April 2006 catalog; what are the odds it's still sealed today? 
Tony Galovich wrote a three-page article about "investing" in unopened card packs and boxes for the June 1992 issue of Alan Kaye's Sports Cards News & Price Guides; it brought about a lot of conversation on FB, so I thought I'd share the entire thing on the blog.
https://www.postwarcards.com/the-1992-galovich-report-on-unopened-material/
Hey…I found fiat that’s maintained its value!
Oh, this dollar bill happens to be signed by Mickey Mantle.
#Fiat #MickeyMantle #Money 
PSA has slabbed 141 1959 Topps Football Cello Packs; I have to presume a few of them are crossovers from when Mastro sold this lot of 36 GAI-graded 2nd-Series examples in August 2004
More on the blog: https://www.postwarcards.com/36-1959-topps-football-cello-packs/
#Football #SportsCards 
Before Cramer Sports Productions became Pacific Trading Cards, they competed with TCMA in the 70s to produce minor league sets; I ran across this ad for a set they made for the Tucson Toros in the Sept 1977 issue of The Trader Speaks.
More on the blog: https://www.postwarcards.com/1977-tucson-toros-baseball-cards/
#Toros #Baseball 
I came across a 1951 Bowman Baseball one-cent display box in Ron Oser Enterprises' April 2001 catalog, which inspired me to revive posts on the blog highlighting complete unopened product runs from various sets. This time, instead of dedicated pages, I'll be sharing them as blog posts with a bit of added commentary.
https://www.postwarcards.com/1951-bowman-baseball-unopened-products/ 
Popsicle is Topsicle!
Thanks Bob Feller! 
Another incredible set I learned about by flipping through an old copy of The Trader Speaks (Sept. 1977) was the 1977 Tom Daniels Burleigh Grimes release. Grimes was the last pitcher allowed to throw to throw the spitball!
More about the set, including an example of an uncut sheet, here: https://www.postwarcards.com/1977-tom-daniels-burleigh-grimes-baseball-cards/
#BaseballCards #TheHobby #SpitBall 
Continuing what seems to be a "hobby hoarding" series dedicated to REA's July 2000 auction is this lot of 429 1970 Topps Super baseball cards.
#baseball #topps 
This is so good you guys ☕️🤩
#coffeechain nostr:npub1cxtzr09d9jw4qfscm7hjtf47pl0z80tnpegc38wgsvmkeywv5mzqe2d5cj

Does it steam sats?
gm, good people!
This morning’s hobby research…Baseball Buttons! I think this display is from the ‘50s.
#Baseball #Buttons #Collect 
Today, here's a little hobby history courtesy of The Trader Speaks. It's an advertisement for the 1977 Indianapolis Indians baseball card set, confirming they were a Team Issue.
More about it on the blog, if you’re curious: https://www.postwarcards.com/1977-indianapolis-indians-team-issue-baseball-cards/
#Baseball #Indians #Indianapolis 
Before Memory Lane Inc. sold the lone PSA 10 1948 Bowman Yogi Berra RC for $192k in 2017, Mastro moved the gem mint example in their April 2006 Sports Catalog Auction. 
I've studied the unopened hobby niche for a while, and this is the first 1952 Topps Look 'n See One-Cent Display Box I've seen. It was offered for sale in an April 2004 auction catalog along with a five-cent wrapper. 
When REA, then a division of MastroNETInc. offered this 1927 Babe Ruth "Babe Comes Home" lobby card for sale in their July 2000 catalog, it was the only example of this particular type known to exist.
More here: https://www.postwarcards.com/1927-babe-ruth-babe-comes-home-lobby-card/
#baberuth 
I ran across this advertisement for what is now a Hobby Library essential, The American Premium Guide to Baseball Cards by Ron Erbe, in the October 1981 issue of The Trader Speaks.
More about it here: https://www.postwarcards.com/the-american-premium-guide-to-baseball-cards/
#baseball #books #thehobby 
High on The Hobby Library want list is a 1945-46 Caramelo Deportivo Cuban League original album, ideally with a complete set inside; this one, from Mastro in June 2006, came with a near set (98/100).
More here: https://www.postwarcards.com/1945-46-caramelo-deportivo-cuban-league-set-in-original-album/
#Cuban #TheHobby #Baseball 