In 1961, Post Cereal partnered with Major League Baseball to produce a new series of baseball cards that would be inserted into boxes of cereal. These Post Cereal baseball cards would become one of the most iconic and sought after vintage card series in the hobby. Series 1 from 1961 was the inaugural set in what would become an annual tradition through 1981.

The 1961 Post Cereal cards contained 106 total cards split between American and National Leagues. The cards featured vibrant color photography on the fronts with player stats and brief bios on the backs. Production quality was very high for baseball cards of the era. Each box of cereal came with 5 random cards from the series. This format made completing the set a challenge for young collectors that helped fuel interest and demand.

Perhaps most notably, the 1961 Post Cereal set featured the first rookie card for soon-to-be superstar Willie Mays of the San Francisco Giants. Mays would go on to have a Hall of Fame career and is widely considered one of the greatest players of all time. His rookie card from this set in near-mint condition can be valued at over $10,000 today. Other high value rookie cards in the 1961 set include Johnny Callison and Don Schwall of the Philadelphia Phillies.


In addition to rookies, the 1961 Post cards contained photos of the era’s biggest stars like Hank Aaron, Willie McCovey, Roberto Clemente, Sandy Koufax and many more. The rear of the cards provided a glimpse into the personal lives and careers of these players. For example, Willie Mays’ card notes that he served in the Army from 1951-1953 and lists his career highlights to that point. For collectors and fans at the time, these Post cards helped humanize and tell the stories behind their favorite ballplayers.

From a production standpoint, the cardboard stock used for the 1961 Post cards was of fairly high quality. Still, the paper had a glossy, magazine-like feel that was more durable than some flimsier cards from other brands at the time. The vivid color photographs varied in size but most fell within a standard baseball card dimension of about 2.5 inches by 3.5 inches. Most cards featured a light blue or gray border around the photo.


The condition of 1961 Post cards today varies greatly since they experienced heavy usage nearly 60 years ago. Near-mint specimens in high demand can still sell for thousands. But well-loved cards that survived the rigors of countless small hands decades ago also hold nostalgic value to enthusiasts of the era. Completing even a moderately played example of the landmark 106-card set remains a prized accomplishment in the collecting community.

Beyond their historic significance as the inaugural Post Cereal issue, certain production quirks make individual 1961 cards even more intriguing. For example, at least two different photo variations have been reported for Roberto Clemente’s card. And the managers from both leagues, Alvin Dark and Fred Hutchinson, have reversed poses from each other compared to subsequent Post sets. Oddities like these only enhance collectors’ appreciation and study of each cardboard relic from baseball’s early 1960s heyday.

In the years after 1961,Post Cereal and Topps would compete fiercely for the baseball card license, each striving to outdo the other with new promotions, oddball parallel issues, and unprecedented print runs. But it was Post’s inaugural 1961 offering nested in boxes of cornflakes, wheaties and rice krispies that started it all. Nearly six decades later, the vintage cardboard photos and tales of baseball’s greatest names from this seminal set still resonate strongly with collectors, historians, and fans alike. In the world of early baseball cards, 1961 Post Cereal Series 1 remains both a historic beginning and a highly coveted end-goal for enthusiast looking to built the collections of a lifetime.


The 1961 Post Cereal Baseball Card Series 1 was a landmark release that helped spark exploding popularity for the hobby in the 1960s. Featuring stars like Willie Mays, Hank Aaron and more in their inaugural cardboard appearances, these cards delivered on-field exploits and off-field facts directly to households nationwide. Produced with impressive quality for the time period, 1961 Post issues surviving today remain a prized component of collections due to their impeccable allure, historical value and mystique from the brand’s inaugural endeavor over half a century ago.

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