Ultraviolet Light and its Current Role in Artifact Authentication By Alex Przygoda (Originally printed Arrowheads.com-Offline Magazine #3 2006) Ultraviolet Light: What is it really good for? Ultraviolet, also known as …

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A Visit with Bill Jackson and Alex Przygoda at Jackson Galleries by Karl Kilguss Originally Published Spring, 2006 Arrowheads.com Off-Line Magazine #2 (republished with permission)   I flew into Lexington …

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Identifying Fraudulent Gregory Perino Certificates: Methodology and Research By Alexander Przygoda 6/13/2004 Gregory Perino Embossing Seal from first known use in a letter to Ray Fraser dated 1989 Foreword Gregory …

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