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Brendan Donovan Signed Mariners Full Size Batting Helmet JSA
Brendan Donovan Signed Mariners Full Size Batting Helmet JSA
Brendan Donovan Signed Mariners Full Size Batting Helmet JSA

Brendan Donovan Signed Mariners Full Size Batting Helmet JSA

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Seattle Mariners Signed Full Size Batting Helmet

Brendan received his Gold Glove Award in 2022, his Rookie season with the St Louis Cardinals. He also made the All Star Team in 2025.

Autographed by Brendan Donovan at Northwest Sportscards in Tacoma, WA. 

This signature was witnessed and authenticated by a JSA representitive April 1st, 2026. 

 

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