Will verdigris on a copper coin cause it to be net graded at ANACS?

[midwest]

I need to know if a very light, one spot, tiny tiny spot of verdigris on a copper coin will cause it to be net graded at ANACS?What about verdigris on copper coins in general?

[gmarguli]

Possibly. It depends on how bad it is and do they notice it.

[Hoot]

What you're describing won't cause it to get net graded. Verdigris spotting gets to the point where they will call a coin corroded. In my understanding, verdigris is not stable chemically. If this is a valuable coin, you may want to have its surfaces neutralized by NCS (or the equivalent) before slabbing it.

 

Charlie? Tom?

 

Hoot

[midwest]

Would the verdigris cause the coin to get bagged at NGC?

[Hoot]

Same with NGC or any other as ANACS. If it's minor, then it will likely not be a problem.

[Oldtrader3]

I agree with Hoot. IMHO, a small spot should not "net grade" a coin, but I would not leave it that way. I would send it to NCS to remove the verdigris before it does become a problem.

[midwest]

Thank you for all your help!

[James_OldeTowne]

My understanding is that an excess of active verdigris actually may result in a no-grade at ANACS (not a net-grade). That's because the con could continue to deteriorate in the capsule if the corrosion is active.

 

James