| | Quote: | | | Posted by aussie | | | |
| Christian
With your coin finds weather they be ancient or modern would it be best to clean them or leave them in their found condition when offering them for sale ? and would cleaning them increase or decrease their value ?
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Well, it depends on the sort of coin or more important the material. Silver coins should be cleaned in general. Depending on the quality of silver used they will tarnish / turn black. This can be removed by lemon juice or special solutions. However the coins will need to be neutralized afterwads again and sealed using neutral wax to prevent further oxidation.
However if you have copper coins it is best to leave them as is. E.g. removing the patina from an old copper or bronce Roman coin would put its valu near zero. There are only few cases where this should be done and an artifical patina be put back on it afterwards.
In most cases you can destroy more by cleaning than if you leave them as is.
Regards,
Christian
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