Restoration of the TPG's comments strike me as an Lighting.

silviosi

Narrative it is simple. I am certify in artifacts restoration for coins, notes, stamps and porcelain. My medical background help me because 2 year of courses with a lot of molecular chemistry is not easy.

So: some folks (I do not give the names) state that the TPG's use for restoration Warm Acetone.

Here the acetone formula: C3H6O and warm sometimes could be an disaster or deadly attack the artifact.

Hope some input on this from you or welcome PCGS insiders.

Silvio

UpGrayedd

Your English is better than my Italian (if I remember correctly) so no disrespect, but I don't understand your point.

silviosi

My point it is that is vehiculate that the TPG for restoration use warm acetone. Me I do not believe