The "q-tip" test

[Nack]

I remember hearing something about determining if an item is silver or something based on swabbing something on a q-tip. Can anyone enlighten me?

[ibaya]

I don't know about this being a metallurgical test, but I have heard of damp cotton swabs used to test the ink on questionable documents.

[Nack]

Thanks, maybe I was thinking about an ink test. Thanks anyway.

[Nota Bene]

Yeap, works on non synthetic inks.

Alexei

[Nack]

Thanks Alexei. I must be easily confused in my advancing age ;)