15 Most Valuable 1990 Leaf Baseball Cards
During an era when baseball card designs had grown somewhat routine, 1990 Leaf baseball cards offered collectors a premium collecting experience with beautiful, glossy cards on high-quality card stock.
Like the 1989 Upper Deck baseball card set had done the year before, this set helped up the standards for years to come.
And, collectors haven’t forgotten: to this day, the set remains extremely popular throughout the hobby…
Packed with Hall of Famers and several key rookie cards, there is plenty to love within its 528-card checkliSt. And in this guide, I’ll run through the 15 most valuable.
Let’s jump right in!
1990 Leaf Baseball Set Snapshot
SET DETAILS
528
Frank Thomas, Larry Walker, Sammy Sosa
GRADING ANALYSIS
106,324
TOTAL GRADED BY PSA
21,421
PSA 10 Population
20.1%
PSA 10 Grade Rate
MOST GRADED CARDS
1
#220 Sammy Sosa
25.7%
27,334
2
#300 Frank Thomas
22.4%
23,802
3
#245 Ken Griffey Jr.
8.6%
9,140
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Ross Uitts – Owner

Ross’s Take
Distributed in two series, the 528-card checklist was somewhat small in quantity for its time, but more than makes up for it in quality.
Rookie cards of Frank Thomas, Sammy Sosa, and Larry Walker lead the way in a set loaded with the era’s biggest names.
It may be easy to forget, but this set was a game-changer when it first made its way into the hobby.
Gone were the days of merely printing the same old routine and somewhat bland sets.
Card manufacturers had to up their standards to compete from this point on as collectors wouldn’t settle for less.
The hobby owes a lot to this set.
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Ross Uitts – Owner

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