Message:

<p>[QUOTE=&quot;Insider, post: 24886858, member: 24314&quot;]<span style="color: #b30000">lordmarcovan, posted: &quot;I’m sure there are indeed better methods.&quot; [<i>agree</i>] </span></p><p><span style="color: #b30000">&quot;In the past, I only used the Vaseline method on <b>cheap bulk</b> Wheaties and <b>bulk </b>bag Brit large pennies.&quot;</span> <span style="color: #000000">[<i>probably not much harm then - cheap and fast method for a dealer to convert the less desirable (to rich snobs) numismatic &quot;dreck&quot; into a more attractive slick and shiny condition.</i>] </span> <span style="color: #b30000">&quot;It was mostly a matter of convenience and easy availability. I’ve since gotten a tin of Renaissance Wax.&nbsp; But not everybody knows what that is, or how to find it.&nbsp; I did briefly have some of that stuff called Blue Ribbon, which <b>seemed to work pretty well</b>.&quot;</span> [<i><span style="color: #0000ff">A bottle of Blue Ribbon should be something every collector should own.</span></i>]&nbsp;&nbsp; &quot;What is your recommendation for safely removing surface grime from copper?&quot;&nbsp;&nbsp; [<i><span style="color: #0000ff">Unfortunately, I have signed two non-disclosure documents so I <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie30" alt=":bucktooth:" unselectable="on" unselectable="on" /> must play dumb.&nbsp; Nevertheless, I am able to dribble out a few hints that are public knowledge.&nbsp; Copper is probably the second most unstable coin metal.&nbsp; It is the hardest to work on and the one that is virtually unrestorable to an acceptable condition once oxidized.&nbsp; Any residues that are on the surface can be remove with common chemicals like Blue Ribbon, water, acetone, etc.&nbsp; Ultrasonic equipment is often used.&nbsp; Many coins become hairlined by rubbing or drying. I use a microscope to examine any coin before I begin and then continue under magnification for delicate cases.&nbsp; I was surprised to learn that some folks have passible results while using a soft brass brush along with chemicals for their corroded, worn &quot;dreck!&quot;&nbsp; I which case, what you do with a Vaseline rub has to be much less severe.] <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" />&nbsp; &nbsp; &nbsp; &nbsp;&nbsp; </span></i>[/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