I heard this card might be about $5,000 …”
Bryan's Autograph Page
Joe Nathan autographed baseball card (Texas Rangers) 2013 Topps Bowman No.89 at 's Sports Collectibles Store
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The Twins Almanac for May
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Joe Nathan – Society for American Baseball Research
2013 Topps Gypsy Queen Baseball - Trading Card Database
April 2018 / Blowout Buzz
Topps Gypsy Queen
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Joe Nathan signs with Texas Rangers