Rare Barfly Edition

Would anyone know the value of a 1st edition of "Barfly:The Continuing Saga of Henry Chinaski" that I own? It's a Paget Press edition that was numbered and signed by the author. It's not the 1/200 print run but a version where only 20 copies were printed, numbered, and signed and each of the 20 copeis has one of the original cartoons bound in the edition along with copies of the other cartoons. Also, I would be interested in selling it. Thank you.
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