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White crud?

Started by Zoins,

3 posts in this topic

Zoins

Zoins

Posted
Posted

I've seen some white crud on a few 18th and 19th century medals and tokens that look like the below:

 

1d62_1.JPG

 

What is that stuff, is it a problem, and can it be removed/conserved?

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jgrinz

jgrinz

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Posted

I was told white crud is BAD ... Oxidizing foriegn material on the surface of the coin and will eat into the coin. What I was told anyway ... Might want to ask NCS directly to address this issue quickly

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Zoins

Zoins

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Thanks jgrinz. I posted this question to NCS. I'm very interested to hear what they say since I've seen this on some historically significant (at least to me) pieces.

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