How Does This Kind Of Toning Happen? Is It Artificial Or Not

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Author	Replies: 9 / Views: 1,726
hhbkiddo Pillar of the Community Canada 1248 Posts	Posted 05/04/2010 2:40 pm how does toning like this come about? Report this Post to the Staff

steve199 Pillar of the Community United States 1882 Posts	Posted 05/04/2010 2:46 pm Nice pics! Pretty coin, too. Report this Post to the Staff
Dollar1948 Pillar of the Community Canada 636 Posts	Posted 05/04/2010 3:15 pm I got no reason to believe this toning is artificial. Its when I see these wild and crazy rainbow colours that one typically saw during an 1970's acid trip, is when I get skeptical. No comment on how this particular toning occured. Is this a nickel dollar? Edited by Dollar1948 05/04/2010 3:19 pm Report this Post to the Staff
Halfwitty Pillar of the Community United States 1523 Posts	Posted 05/04/2010 3:23 pm I would say because it says ONE DOLLAR my guess is that it's a dollar,1948 but I really liked the acid trip thing. Cool.I had a canuck dollar that did the same thing.Did they not use copper in 72? Report this Post to the Staff
Ugly Pillar of the Community Canada 1733 Posts	Posted 05/04/2010 3:48 pm A lot of these I've seen are caused by the RCM clamshells prior to years where they encapsulated the coins. The foam they put in them where the face of the coin goes gives off acidic compounds when exposed to normal sunlight type heat. Funny thing is even when removed these coins often keep on toning. Not every one of them gets off so easy though, if they were kept in a humid environment for any length of time the coin just turns foggy without the pretty colours. Great pics, I can still see the fuzz from the clamshell lining on that coin in your picture. Can't wait until my macro lens arrives. Report this Post to the Staff
hhbkiddo Pillar of the Community Canada 1248 Posts	Posted 05/04/2010 4:34 pm UGLY, you are soooooooo smart and dead on with your answer. It is the foam rubber they put in these darn clam shells. But is it rather nice. did you ever use a macro lens? key is macro, but the most important key is the light......... Report this Post to the Staff
biokemist6 Bedrock of the Community United States 12437 Posts	Posted 05/04/2010 4:55 pm Quote: I would say because it says ONE DOLLAR my guess is that it's a dollar...Did they not use copper in 72? No, you missed the question of whether it was a nickel dollar or a silver dollar- the denomination should be obvious for any sighted person. One dollar was pure nickel while the other was .500 silver, Canada never minted CuNi large dollars like the US. Incidentally, Canada is home to some of the largest nickel ore deposits in the world which is probably a major reason why it is frequently used in a pure composition in coinage. I would have to say that the toning was caused by the OGP as well, there are a few 1970s dollars in my local shop that have similar toning and all are in their original holders. That is definitely a beautifully toned dollar Edited by biokemist6 05/04/2010 5:00 pm Report this Post to the Staff
hhbkiddo Pillar of the Community Canada 1248 Posts	Posted 05/04/2010 5:07 pm Thanks guys. the dollar is 50% silver & 50% copper. worth nearly nothing.... Report this Post to the Staff
coinsrfun Pillar of the Community Canada 693 Posts	Posted 05/04/2010 8:14 pm HHB, I will trade you for a silver half of my choice........lol Report this Post to the Staff
hhbkiddo Pillar of the Community Canada 1248 Posts	Posted 05/04/2010 10:42 pm coinsrfun what is your choice?, a 1948 AU50? or a 1947 ML CR? just hoping.... Report this Post to the Staff
	Replies: 9 / Views: 1,726

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