When it comes to collecting valuable sports cards, few compare to the high-priced gems that can be found in the world of baseball cards. With an extensive history spanning over a century, baseball cards have captured the attention of collectors for generations due to their historic significance tied to the national pastime. While not every baseball card in your collection holds immense value, some rare finds from baseball’s golden era in the 1950s and 1960s can be worth thousands, or even hundreds of thousands, if you happen to own the right card in pristine condition.

If you’re looking to potentially make a sizable profit by selling off pieces from your baseball card collection, here are some of the most valuable and desirable cards to keep an eye out for that still command top dollar on the secondary market today. Of course, the grade and state of preservation for any vintage card will impact its true worth. But in gem mint condition, these represent some of the best baseball cards to potentially sell.

1909 T206 Honus Wagner – The crown jewel of collectible cards, the iconic Honus Wagner from the ultra-popular 1909-1911 T206 series is considered the holy grail by many in the hobby. Only around 60 are known to exist in all grades. In top condition, one of these rare pieces of cardboard could fetch well over $1 million at auction.

1952 Topps Mickey Mantle (Rookie Card) – The first Topps card of the Mick in action for the Yankees remains one of the most recognizable and coveted in the industry. High grade examples now sell for hundreds of thousands, with an ungraded copy recently pulling in over $275,000. Condition is everything, but this is a true blue chip card for any collection.

1914 Baltimore News Babe Ruth (Rookie Card) – The only known card depicting Babe Ruth as a pitcher for the minor league Boston Red Sox, over 100 years later only one mint copy is known to still exist. The potential value here is through the roof, with experts speculating eight-figures if it ever became available.

1933 Goudey #53 Lou Gehrig – A true Gehrig rookie card is a tough find in any condition considering how early in his career this iconic set was released. But the condition tolerant design makes it achievable for many collectors. Graded examples now crack six-figures routinely.

1955 Bowman Ted Williams – Presenting the Splendid Splinter in the waning years of his playing days, high grade ’55 Bowmans command serious money today. The condition sensitive focus photos command top dollar, with gems pushing towards six-figures or more.

1957 Topps Hank Aaron – A true affordable icon for today’s collectors on a budget, the Hammer’s sophomore Topps card still delivers with style points. Even lower graded copies are worth over $1,000 now, with gems reaching past the $10,000 mark for a key piece of the civil rights pioneer’s career.

1948 Leaf Jackie Robinson (Brooklyn Dodgers) – As the first widely distributed card of Jackie Robinson as a Brooklyn Dodger, the 1948 Leaf set holds extra significance for collectors and historians alike. Even well-worn examples now sell for thousands due to Robinson’s pioneer status as the first African American in MLB.

1956 Topps Sandy Koufax – Considered one of the top pitching performances of all-time, Koufax’s dominant 1965 season makes his rookie card a must-have for Dodgers fans and vintage collectors. High grades command well into five-figures today.

1963 Topps Pete Rose – In one of the sharpest cardboard designs ever produced, the Hit King’s rookie card remains a premier chase for aficionados. Near-mint to mint ’63 Roses sell for several thousand dollars or more depending on that all-critical condition.

1909 T3 Turkey Red Cabinets Honus Wagner – Outside of the ultra-rare regular T206 Wagner, this smaller cigarette cabinet card variation may be the most valuable and desired Wagner card period. The recent record sale of one for $3.12 millionusd shows why these are the true Holy Grail.

While condition is the most important factor when determining potential value, these represent some of the biggest names and most game-changing rookie cards throughout the generations that can truly produce big paydays if they are preserved well and correctly graded. Of course, there’s no guarantee any single card you have will earn top dollar or even crack four-figures. But for those holding gems of stars like Mantle, Gehrig, Williams or Robinson, it’s certainly worth investigating further what intact examples have fetched at auction. So next time you’re flipping through that old shoebox full of cards in the attic, keep an eye out for any of these historic pieces of sports memorabilia in your collection