Stephen Koschal ~ Autograph Services
Serving Collectors, Libraries, Institutions, Autograph Galleries and Dealers Since 1967

P.O. Box 311061, Miami, FL 33231 USA ~ Phone (561) 315-3622 ~ skoschal@aol.com

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AUTOGRAPH AUTHENTICATION SERVICE

Question: Why utilize our autograph authentication service?

Answer: Our autograph authentication service is the choice of many of the high profile authentication services. While in their office when they are unable to come to a conclusion and need a professional researcher, for a professional opinion, they contact Stephen Koschal. When they are physically at an auction house and just don't know, they contact Stephen Koschal directly from the auction house.
 
Without a doubt, autograph authentications by Stephen Koschal have been found to be the most accurate of any authenticating service. Koschal’s expertise is legendary and recognized Internationally. He is the author of several books on the subject of autograph collecting and he has over 200 articles published on autograph collecting that have appeared in every single autograph journal or magazine.

He has appeared in court, many times. The results were that he was responsible for putting forgers in jail or prison. As early as the 1970’s Koschal was responsible for winning a case for a New Jersey doctor whose wife was forging her husband’s signatures on checks while they were going through a divorce.

For two decades, Koschal worked along with Charles Hamilton in New York discovering forgeries and new secretarial signatures. Less than three months before Hamilton’s passing in December 1996 he wrote Koschal stating: “…..I enormously appreciate your efforts in trying to stop the forgers, not just of my appraisals, but in every area…..”

Recognized by the U.S. Government and F.B.I. as a outstanding autograph expert, Koschal was chosen to represent them in a San Diego Federal Court in the famous “Operation Bullpen” case. The result of the jury trial is the forger was sent to prison. Koschal received a letter of commendation and recommendation from the F.B.I. for his professional efforts.
 
Our authentication service provides professional autograph authentications for your signed items including letters, documents, photographs, checks and signed books.
 
We have over forty years experience in the field of authentication and maintain one of the largest autograph reference libraries of books and exemplars in the world.
 
Our Certificates of Examination are accepted by every professional autograph dealer and auction house, world wide.
 
Our service is prompt, our research and decision usually runs 48-72 hours after receipt of your item.
 
Our fees are only $50.00 per signature plus return shipping which usually averages an additional $8.00 US currency.
 
Our service does not cover modern celebrities or modern music.