Message:

<p>[QUOTE=&quot;-jeffB, post: 1969967, member: 27832&quot;]I&#039;ve seen other posts about a silver date restorer that was available a long time ago (1960s?), but I haven&#039;t been able to track it down. I think someone said it was cyanide-based, but I&#039;d think nitric acid would be equally effective. &quot;Purple stain&quot; sounds a bit like the black stain of silver nitrate, or the yellow stain of nitric acid -- I&#039;ve gotten both in the past, but I haven&#039;t experimented on myself to try to get the purple color. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" /></p><p><br /></p><p>In recent discussions, the consensus has been that silver simply doesn&#039;t restore the way copper-nickel does. I suppose I could try some of my silver-test acid on one of my poorer dateless SLQs, but I wouldn&#039;t expect useful results.[/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