|Stamp front (blank back)
Vintage catalogs record these as "Eureka Sportstamps" because of the tiny print under that yellow bar.
"Eureka" doesn't appear on the album or packaging, so it's possible the stamps were printed under a separate company name for financial reasons. Thanks to its photo album and some deep investigation by a stamp collector (see Cinderellas and Poster Stamps of F. H. Dietz), we know an entity called National Poster Stamp Society designed the set itself, arranged on 10 sheets of 20 players each.
|Brooklyn Dodgers and Chicago Cubs sheet
National Poster Stamp Society planned to release further Sportstamps sets, but stopped at this single run of 200 National Leaguers. Scans of the company-made album cover, pages, and "collectors' club" hint at what could've been.
|Brooklyn Dodgers pages
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UPDATE: Return address on one of the original mailing envelopes. Sportstamp kept their offices in the Weightman Building on 1524 Chestnut Street, Philadelphia, PA.
The album itself echoes the Sportstamps text and claims a home in Scranton, PA.
Even with just the National League represented, this set's checklist features big HOFers like Jackie Robinson, Snider, Campanella, Spahn, and Musial. The first two stamps picture MLB executives Happy Chandler and Ford Frick, and then teams appear alphabetically. The Boston Braves come first, so right-hander Red Barrett gets the #5 between Johnny Antonelli and Clint Conaster.
A good wartime baseball performer, Red Barrett won 23 games in 1945 (career stats) and scored this April 1, 1946 cover of Life Magazine.
Barrett also set a baseball record for efficiency by completing a 2-0 win over Boston's Braves in just 58 pitches on August 10, 1944; Baseball-Reference covered both it and other quick games.
UPDATE: Terrific find by fellow OBC collector Greg, who pointed me to this October 1949 Poster Stamp Bulletin profile of the Eureka set. Its article states a 600,000 print run and August release date, with the whole set (plus album) costing just $1.
|Poster Stamp Bulletin, Vol 15, #5
According to Alphabetilately.org, the National Poster Stamp Society was a hobbyist arm of the Mid-States Gummed Paper Company, making their 1949 printing one of the earliest direct-to-collector baseball sets. It's only preceded by another NPSS set, this 24-player 1944 sheet of New York Yankees that celebrates their 1943 World Championship.
NPSS credits longtime baseball photographer George Dorrill with taking these images and, as in 1949, they created an album to hold the stamps. Its design echoed the American air power theme familiar throughout WWII.
October 1944's issue of the Poster Stamp Bulletin priced the full set (with album) at thirty-five cents.
Full credit to Alphabetilately.org for tracking down all this extra info and providing scans!
Value: Single stamps are scarce but easily damaged, so come cheap in low-grade. Stars in good shape can run $20 and up, and albums with full sets cost hundreds.
Fakes / reprints: Haven't seen any in the marketplace, but it's worth being careful when buying stars, since sets with blank backs take half the energy to fake.