While I do not have a certificate of authenticity for this item, I do guarantee that the signature is authentic.  Almost all of my autographs were obtained either in person at local New England shows/signings throughout the 1990's, or through known, reputable vendors conducting signings locally or in the SCD.  Unfortunately COA's were neither common or really a thing at the time, but I do have the utmost confidence this is 100% authentic.  Thanks for looking at my auction.