Does anyone own a Harry Wright Autograph

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Posted By: davidcycleback

Ink testing is something that would be done in court cases (contested wills,
forgery, etc), and not for a collectable signatures. To test the ink, at least
a few very small portions of the ink has to be removed and it won't be put back.

To test the ink in a lab they seprate and the substances/chemicals in the ink and can
then often determine the age of the ink. I bet at least a few board members have done
chromoetography in a chemistry course or for work. This is the standard method to separate
apart the substances ink for identification and dating.

The FBI has large databases of what substances were used in ink and when and where.
Most pen manufacturers supply data to the FBI, so scientists can often determine the
date and brand of pen used.

There are non-destructive tests to look at inks, including using an infrared viewer.
I have an infred viewer, but it mostly sits in a drawer.