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Gregg Jefferies Signed, Game-worn 1988 Mets Jacket (Rookie Season)
Gregg Jefferies Signed, Game-worn 1988 Mets Jacket (Rookie Season) - Memorabilia Expert
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1988 Gregg Jefferies Mets Game-Worn, Signed Batting Practice
, #9849387, Exported By ExportYourStore
Gregg Jefferies Signed 1990 New York Mets Game Issued Authentic Jersey JSA COA
1988 Gregg Jefferies Mets Game-Worn, Signed Batting Practice
Team Issued Jersey
1988 Gregg Jefferies Mets Game-Worn, Signed Batting Practice Jersey