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1988 Donruss #657 Gregg Jefferies NM-MT RC Rookie New York Mets
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The Snorting Bull: I Love The 1990s Cardinals Part 21 - Gregg Jefferies
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1989 Topps New York Mets Baseball Card #233 Gregg Jefferies Future Star RC, in 2023
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gregg jefferies topps 233 Values - MAVIN
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Gregg Jefferies autographed baseball card (New York Mets) 1989 BBC Magazine Rookie Stars #10 - Baseball Slabbed Autographed Cards at 's Sports Collectibles Store
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The Confounding Definition of a Rookie Card - Metsmerized Online
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Gregg Jefferies - Phillies #10 Score 1997 Baseball Trading Card
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Gregg Jefferies Donruss 35 Values - MAVIN
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Gregg Jefferies Rookie Card Baseball Cards
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1990 Topps Rookies #16 Gregg Jefferies - NM-MT
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Gregg Jefferies - Mets #233 Topps 1989 Baseball Trading Card
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Ranking the 11 worst sets of the Junk Wax Era of baseball cards