Is there any known way of making dateless silver coins have the date "reappear" on them, such as SLQ? I know that you can put dateless buffalo nickels in vinegar and the date can reappear after a couple days.
Yes there is but the name of the product eludes me at the moment. Something like what the cops use to raise the serial numbers on a weapon used in a crime that has had them filed off.
This discussion comes up periodically. The consensus seems to be that you can't -- silver isn't as easy to etch as copper-nickel, and when you do, dates don't come back (because of metallurgical differences that I don't pretend to understand). I believe someone said that there was once a cyanide-based agent that people used to try to restore dates on silver, but whether it ever worked or not, you can't buy it now. If there were an effective way to restore dates on silver, there'd certainly be a vigorous market in it, given all the "dateless S" SLQs that might turn out to be a 23-S or 18/17-S. Just look at what we have with Buffalo nickels.
It is called nic-a-date, Ebay link: http://www.ebay.com/itm/NIC-A-DATE-...312?pt=LH_DefaultDomain_0&hash=item58afaf6440 this is for nickels.. not sure if it works on silver ????
