Message:

<p>[QUOTE=&quot;gsimonel, post: 3746709, member: 82549&quot;]Do not leave it in olive oil for extended periods. Olive oil is slightly acidic. An overnight soak won&#039;t hurt anything. But if you leave it in for a week or two you&#039;ll notice the olive oil turning bluish. That&#039;s copper leaching out of the coin--not good.</p><p><br /></p><p>If you are still not satisfied after a couple of DW soaks and brushing, as described by medoraman and Pishpash, I would escalate. The next level on Glenn&#039;s Ever-Increasing Cleaning Harshness pyramid would be soaking followed by brushing with a brass bristle brush, which you can find in most hardware or department stores. Still not satisfied? Escalate to brass tools (buy a brass rod from a hobby shop and file the end into a point) and a stereo microscope. Worst case scenario is advancing to electrolysis, the top of the pyramid, which will remove <i>everything</i> on the surface, including the patina. My suspicion, though, is that removing the patina will reveal a lot of surface roughness. You might not want to go there.[/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in