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Question needed answer

Started by zissop-migration,

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zissop-migration

zissop-migration

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Posted

I have the coin shown on the picture. The coin is red with some black spots mainly on the cheek (the other side is totally red). This black spots are not corrosion or something bad but I suspect mainly dirt.

 

The question is: Is it possible for NCS to clean this spots without affecting the red of the coin? I mean is it worth the try?

 

Best regards

John

 

1L_1879.jpg

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CHRISS

CHRISS

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The red color on copper coins can be very fragile. When a red copper coin is evaluated for conservation the fragility of that color is taken into consideration. Frequently coins will be deemed "no conservation" based on this fact alone.

 

If it is felt that the color on this coin will be maintained after conservation, there likely will still be spots on the coin. The active residues can be removed, but the toning has changed the surface of the coin and that can not be changed to return the coin to completely red.

 

Chris, NCS

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