I've heard that toning is uncommon on nickel surfaces (i.e. 1965 and up dimes and quarters, and 1971 and up halves) is this true?
I have bought a number of toned nickels ... so i would think that the copper-nickel clad coinage of the 1970's and later era, could tone in the right environment and with enough time ... perhaps they just need more years to get the populations up. However, from what I have seen silver is a much more reactive surface than nickel -- so there will always be more toned silver coins (IMHO). One thing that might be contributing to fewer toned modern coins is better albums, envelopes, and holders (made without sulfur) in the modern era. Many of these great old toners were due to the abundance of lower quality holders and albums made prior to 1970 and even more so prior to 1959.
Here's one that fits that criteria... she's a beauty LOL... http://www.ebay.com/itm/Rainbow-Ton...25?pt=Coins_US_Individual&hash=item20bf563139
okay, good. I have a rainbow toned 1972-s proof half dollar made of cupro-nickel. Just wanted to make sure.
Yuck. that's terrible. That just is not at all real. I don't know what the consigner is talking about. I don't see how orange andpurpletogether are considered "rainbow toning". it looks painted. toning simply doesn't form like that. and toning rarely if ever covers the whole entire coin, both the obverse and the reverse.
Here is one example of Copper-Nickel clad toning that I found on ebay ... http://www.ebay.com/itm/1979-D-KENN...80?pt=Coins_US_Individual&hash=item2c5bbbbee4
definitely a nice coin, but I personally would not send a circulation issue clad half to get slabbed. just not really worth it IMHO. and for $75, really? I personally believe there is a lot better coins out there for 75 dollars. Clad half dollars should not be this expensive, toned or not. The other day I got a 1972 proof clad half for $5.00 with a lot more rainbow toning than that.
I started a thread about toned moderns here: http://www.cointalk.com/t195460/ Also, I filled some Danscos about 16 months ago, modern quarters...And some of those are already toning.
Agreed. The two main factors modern coins do not tone as much as older silver is metal composition does not lead to it, and modern holders aren't as rich of sulphur.