At AAU we use scientific principles in our field. Submitted signatures

and or items are examined with regard to its writing surface, writing

instrument, ink comparisons and area measurements. Our examinations

are conducted using ultraviolet and infrared lighting as well as using a

stereoscopic microscope.

   The key to performing a scientific and professional conclusion in this

area of expertise, autographs and historical documents, is the exemplars

located in our library. Having 30 known and substantiated samples of an

individual from the 1970’s is not a full sampling. One must have a time line

of their various signatures. For example, note Joe DiMaggio’s autograph

from the 1940's compared to his 1980’s style. It evolved from one of the

most flamboyant, stylish and artistic signatures that I have ever examined

into a strict and efficient mark.

    We believe that it is our original and facsimile collection on thousands

of individuals that is the key to our accuracy. Apples must be compared

to apples, 1980’s signatures to 1980’s signatures and so on and so forth. 

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