Message:

<p>[QUOTE=&quot;Conder101, post: 376949, member: 66&quot;]The problem with nic-a-date and many similar chemicals when using them to etch a silver coin and bring out a date is that a great many silver compounds are light sensative and instantly turn the treated area a dark black which efectively hides the faint date or feature you are trying to bring out.</p><p><br /></p><p>You might be able to do it in a totally dark room and clean away all the chemicals from the surface of the coin before exposing it to the light.&nbsp; That might work, but of course in the totally dark room you can&#039;t see to tell when the date has been restored.&nbsp; I don&#039;t know but you might be able to do it with a darkroom safelight.&nbsp; (A safelight produces light in a certain portion of the red spectrum that allows you to see but does not react with the silver compounds used on photographic film.)[/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