Autograph Authentication - A Most Fascinating Item
By Stephen Koschal
Never a week goes by without being asked what was the most unusual ite
Stephen Koschal, Autograph Authenticator,
most auction houses think he’s the best…
Stephen Koschal has studied autographs for about sixty years and been a autograph dealer handling quality autographs and signed books since 1967.
As an autograph authent
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