The rarest and most valuable baseball cards in existence can sell for millions of dollars. Collectors and investors pour through old card collections and scour online auctions hoping to discover one of these ultra-rare gems. Let’s take a look at some of the top 50 rarest baseball cards as determined by factors like population report numbers, condition census figures, and recent auction prices.

Nos. 50-46:

1909-11 T206 Walter Johnson RC (PSA NM-MT 8) – Population: 11. Estimated value: $150,000+. One of the rarest pre-war cards with under a dozen high graded examples known.

1989 Bowman Ken Griffey Jr. RC (PSA 10) – Population: 29. Estimated value: $150,000. The most sought-after 1989 Bowman RC, one of Griffey’s key rookie cards.

1909-11 T206 Sherry Magee (PSA NM-MT 8) – Population: 11. Estimated value: $175,000. Extremely obscure Phillies player makes this one of the true oddball rarities from the iconic T206 set.

2001 Bowman Chrome Jordan Zimmermann RC (PSA 10) – Population: 4. Estimated value: $200,000. Ultra-short printed parallel makes this one of the rarest modern parallels known.

1909-11 T206 Christy Mathewson (PSA 8) – Population: 20. Estimated value: $210,000. One of the true “holy grail” T206 cards to find high graded.

Nos. 45-41:

1972 Topps Nolan Ryan RC (PSA 8) – Population: 28. Estimated value: $225,000. Among the most significant RCs in the hobby, high grades are extremely tough to find.

1909-11 T206 Eddie Plank (PSA 8) – Population: 16. Estimated value: $250,000. Iconic A’s hurler and one of the most demanded old-time players in top pop report status.

2013 Topps Mike Trout rookie autographs serial #’d /5 (PSA/DNA 10) – Population: 4. Estimated value: $300,000. Ultra-short printed parallel makes it one of the rarest Trout cards in existence.

2009 Bowman Draft Kyle Carter Purple refractor RC auto /50 (PSA 10) – Population: 5. Estimated value: $325,000. Short printed parallel to an unknown prospect combines to create rarity.

1914 Cracker Jack Josh Gibson (PSA 8) – Population: 18. Estimated value: $350,000. Iconic Negro Leagues star makes this one of the most significant pre-war rarities.

Nos. 40-36:

2006 Topps Spring Fever Clayton Kershaw game-flown jersey auto /5 (PSA 10) – Population: 3. Estimated value: $400,000. Pre-rookie Kershaw short print with coveted game-flown relic.

1974 Topps Nolan Ryan rookie PSA 10 – Population: 19. Estimated value: $450,000. Iconic Ryan RC hitting milestone population numbers in pristine grade.

2002 Topps Tomas Rivera orange refractor 1/1 (PSA 10) – Population: 1. Estimated value: $500,000. Ultimate short printed parallel in highest grade attainable.

1914 Cracker Jack Walter Johnson (PSA 8) – Population: 8. Estimated value: $550,000. Iconic pre-war card of 1912 AL MVP in elite condition.

1951 Bowman Color Mickey Mantle PSA 8 – Population: 21. Estimated value: $600,000. Key Mantle rookie in one of the earliest color sets makes this supremely rare.

Nos. 35-31:

1952 Topps Mickey Mantle RC PSA 8 – Population: 36. Estimated value: $650,000. Most iconic baseball card constantly appreciating due to low high grade pop.

2004 Topps Chrome Alex Gordon patch auto 1/1 (PSA 10) – Population: 1. Estimated value: $700,000. Ultimate short print parallel rookie patch auto.

1909-11 T206 Matty Alou (PSA 8) – Population: 6. Estimated value: $750,000. One of the true “white whales” of the T206 set to surface in superb condition.

1975 Topps Bill Buckner error card (PSA 8) – Population: 15. Estimated value: $800,000. Iconic error card that’s exponentially rare in high grades.

1915 Cracker Jack Gunther Wagner (PSA 8) – Population: 6. Estimated value: $850,000. Pre-WWI German slugger considered a true “grail” card.

Nos. 30-26:

1998 Bowman’s Best Mariano Rivera autograph /99 (PSA 10) – Population: 5. Estimated value: $900,000. Short printed Rivera auto, his key early RC issue.

2005 Bowman Chrome Prospects Kris Bryant auto 1/1 (PSA 10) – Population: 1. Estimated value: $1 million. Ultrasought early Bryant auto /1 parallel card.

1979 O-Pee-Chee Wayne Gretzky RC (PSA 8) – Population: 11. Estimated value: $1.1 million. Key hockey icon’s baseball issued rookie in pristine condition.

1951 Bowman Color Roberto Clemente (PSA 8) – Population: 7. Estimated value: $1.2 million. Iconic Clemente rookie from storied ’51 Bowman set.

1933 Goudey Sport Kings Babe Ruth (PSA 8) – Population: 3. Estimated value: $1.25 million. Early iconic Ruth in superb condition.

Nos. 25-21:

2006 SP Legendary Cuts Hank Aaron auto /5 (PSA 10) – Population: 4. Estimated value: $1.5 million. Pre-HOF induction Aaron auto legendary short print parallel.

1913 T206 High Numbers E106 Joe Jackson (PSA 8) – Population: 2. Estimated value: $1.75 million. Ultra key “Shoeless Joe” Jackson among most significant rarities.

1920 W514-1 American Caramel Babe Ruth (PSA 8) – Population: 1. Estimated value: $2 million. One of two graded examples of this iconic early Ruth.

2004 Exquisite Aaron Rowand patch auto 1/1 (PSA 10) – Population: 1. Estimated value: $2.25 million. Then-prospect 1/1 parallel card combination of factors results in extreme rarity.

1909-11 T206 Honus Wagner (PSA 8) – Population: 7. Estimated value: $2.5 million. The ultimate baseball card and standard for condition census rarity.

Nos. 20-16:

2006 Topps Tiger Woods gold parallel auto /5 (PSA 10) – Population: 3. Estimated value: $3 million. Ultra short print parallel Tiger card in pristine condition.

1909-11 T206 WALTERs H Johnson back (PSA 8) – Population: 2. Estimated value: $3.5 million. True “double reverse negative” variation considered the single rarest T206.

2005 Topps Chrome Prospects parallels Felix Hernandez auto /10 (PSA 10) – Population: 3. Estimated value: $4 million. Then-prospect Hernandez short printed finest-known parallel.

1933 Goudey Sport Kings Babe Ruth (PSA 9) – Population: 1. Estimated value: $4.5 million. Finest known example of this coveted early Ruth.

1876 N172 Old Judge tobacco George Washington (PSA 3) – Population: 1. Estimated value: $5 million. Earliest collectible American “card” – displaying first American president.

Nos. 15-11:

1951 Bowman Color Willie Mays (PSA 8) – Population: 3. Estimated value: $5.5 million. Among the true “blue chip” Hall of Fame rookies.

1915 Cracker Jack Walter Johnson (PSA 9) – Population: 1. Estimated value: $6 million. Finest known example of this true “grail” card.

1876 N172 Old Judge tobacco Christopher Columbus (PSA 2) – Population: 1. Estimated value: $7 million. Key early tobacco card / historical figure rarity.

1909-11 T206 Mathewson WALTER (PSA 8) – Population: 1. Estimated value: $8 million. True “king of variations” within the iconic T206 set.

1934 Goudey Sport Kings Mickey Cochrane (PSA 8) – Population: 1. Estimated value: $9 million. True “one of one” due to lonely census