Gutierrez is a reputable and well known autograph expert. He was an authenticator for PSA/DNA and MastroNet and currently works for Heritage. I know he's done appraisals for the Babe Herman estate and the Pete Rozelle estate.
I'd say it's good if a collection comes with a document from him.
Last edited by drc; 11-02-2012 at 07:04 PM.
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