Opinions requested regarding authenticating signatures/writing samples

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Posted By: <b>John S</b><p>I have some writing samples (non-sports) that I would like to have authenticated and properly labeled/preserved. Outside of Spence what are my options?

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Posted By: <b>Jimmy</b><p>Really just PSA, there maybe some auctions that could give you an idea for a fee. Try some political auction dealers that specialize in non-sport autographs.<br /><br />Jimmy<br />