Autographed Seattle Mariners Postcards, Seattle Mariners Signed Postcards, Seattle Mariners Autographed Memorabilia – Page 2 – Pristine Marketplace

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Ichiro Suzuki Autographed 2003 Upper Deck Post Card #26 Seattle Mariners Auto Grade 10 Beckett BAS #12491291
Very low stock (1 unit)

$269

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Ichiro Suzuki Autographed 2002 Topps Post Card #9 Seattle Mariners Auto Grade 10 Beckett BAS #12491005
Very low stock (1 unit)

$269

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Autographed Seattle Mariners Postcards

Discover a unique and affordable category of Mariners memorabilia with our selection of authenticated signed postcards. These vintage and modern postcards feature autographs from Seattle Mariners players across multiple eras, each verified with a COA and tamper-evident hologram from our trusted authentication partners.

Expand your collection with Mariners trading cards or signed photos. See our complete Seattle Mariners memorabilia hub. 60-day return policy on all purchases.

Are signed Mariners postcards authenticated?

Yes. Every autographed postcard is verified through our authentication partners and ships with a Certificate of Authenticity and tamper-evident hologram for guaranteed authenticity.