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<p>[QUOTE=&quot;dougsmit, post: 2438097, member: 19463&quot;]Question:&nbsp; The process said to wipe with cloth after egging.&nbsp; Does this remove some tone?&nbsp; If you wait a few days and wipe with that same cloth, does it remove less?&nbsp; If you wait a few years, is the tone still wipe-able or is there a point where the color is stable.&nbsp; Does the treatment speed or retard additional toning that a coin might experience had there been no egg-celerated&nbsp; toning?&nbsp; The coin here looks to have some brightness on the camel on high points that I wonder if could be from the wiping.&nbsp; </p><p><br /></p><p>Egg yolk is controlled release sulfur.&nbsp; How is this more effective than using a small amount of gardening sulfur in a plastic bag?&nbsp; I suppose one way of testing such things would be to clean some pre-1964 melter grade silver and run some tests.&nbsp; </p><p><br /></p><p>I remain concerned about some of my bright silver coins that I have had for years and are not retoning as I would expect any silver item to (think grandma&#039;s tableware that tarnished every time it came out for a special meal).&nbsp; I have coins that are retoning and coins that are not.&nbsp; I&#039;m suspicious that some may have been treated with a tarnish retardant.&nbsp; They might even be plated with rhodium or something similar but I have no idea what has happened to coins I have had for decades in the time before they came to me.&nbsp;&nbsp; I bought the coin below from NFA in 1988 and it is just a bright today as it was then.&nbsp; Other coins in the same box tone at least a little.&nbsp; I guarantee grandma&#039;s silverware needed detarnishing in a matter of days not years.&nbsp; Explanation?</p><p>[ATTACH=full]507565[/ATTACH][/QUOTE]</p><p><br /></p>

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