Images of Coins KNOWN to have been artificially toned
ANACONDA
Posts: 4,692 ✭
One of the most difficult things for numismatists to do is to identify coins that are AT.
Controversially toned coins are not what we want.
So if you desire, please post some images of coins that are KNOWN to be or are clearly AT. The ideal coin would be a coin that YOU artificially toned or a coin that someone else (with credibility) admitted that they artificially toned. Coins that are clearly AT by appearance alone would be satisfactory but not quite as good as a coin that is a KNOWN AT coin (The coin should be clearly AT as some are.).
Come back and add them as you run across them. Add any info about the coins that you have i.e., made by you or a friend, made using a baked potato, fried in a pan.....held in your armpit for an entire month...that kind of stuff.
(An image of that infamous AT Peace dollar would be a good start if you have it handy.)
Controversially toned coins are not what we want.
So if you desire, please post some images of coins that are KNOWN to be or are clearly AT. The ideal coin would be a coin that YOU artificially toned or a coin that someone else (with credibility) admitted that they artificially toned. Coins that are clearly AT by appearance alone would be satisfactory but not quite as good as a coin that is a KNOWN AT coin (The coin should be clearly AT as some are.).
Come back and add them as you run across them. Add any info about the coins that you have i.e., made by you or a friend, made using a baked potato, fried in a pan.....held in your armpit for an entire month...that kind of stuff.
(An image of that infamous AT Peace dollar would be a good start if you have it handy.)
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mo
ho-hum
yep
they caught this one
this one turned out exceptionally nice
I am tiring
last one
and they're cold.
I don't want nobody to shoot me in the foxhole."
Mary
Best Franklin Website
This next picture shows the progression of colors of an AT coin as it was being toned. The pictures are of the same coin taken every 10 seconds or so as it was being thermally oxidized.
And here is an educational AT vs. NT display I made a while back that was displayed by Jamie Franki at a coin design exhibition. The card reads as follows:
"The Progression of Colors on Artificially Toned Coins
The colors visible on these coins were produced by Thermal Oxidation, a process involving heat, atmospheric oxygen, atmospheric sulfur, copper and nickel. There are no pigments or dyes used. The colors are generated by a transparent oxide film grown on the surface of the coins. The thickness of the film dictates the color perceived as light passes through the film and is reflected of the surface of the coins. Similar coloration phenomena can be seen in naturewhen viewing a rainbow colored oil slick on a wet road or in the iridescent colors of some insects.
The coloration on these coins is called "artificial toning". When coins are artificially toned through Thermal Oxidation, the progression of colors goes from the untoned nickel to yellow, gold, orange, reddish-purple, bluish-purple on to blue and ultimately grey as the film grows thicker. Not all of the colors of the visible spectrum are produced by this method. True red and green are not produced.
Coins can also tone naturally over time from similar film formations involving sulfur, atmospheric gasses and moisture. Genuine toned coins have a more natural appearance and, when attractive, enhance the eye appeal and the value of collectable coins. Artificial toning, while sometimes attractive, often appears manufactured and does not add to the value of collectable coins except as a novelty. Often, artificial toning is done to deceive novice collectors by hiding signs of damage on the surface of the coin, and to add value. Therefore, coin collectors should learn to be able to recognize the appearance of artificial toning. One of the most effective means of learning to recognize artificial toning is to compare known naturally toned coins with known artificially toned coins as in this presentation. By handling a number of both over time you will be develop an "eye" for genuine color and the way it appears on the surfaces of coins. "
And here are a few others I artificially toned using different techniques
and they're cold.
I don't want nobody to shoot me in the foxhole."
Mary
Best Franklin Website
A coppernickel dip job.
If I only had a dollar for every VAM I have...err...nevermind...I do!!
My "Fun With 21D" Die State Collection - QX5 Pics Attached
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The infamous 1923 Peace dollar.
all you really gotta do though to see them is look at a dozen toned pieces on the web ;
odd`s are at least 1 0ut of ten are fake toned
freash from the lab
the_northern_trading_company
ace@airadv.net
What an electric peace nickel.
96eagle
Herb
Here's a link to the TCCS archives of known at'd coins. link
Not sure about that.......about 95-98% of the fake toned coins are pretty easily recognizable right away, and ones that are not recognizable at first glance were not typically AT'd in a way to make them worth a significant premium for the color anyway.
Keep in mind that most AT jobs which are done by the pros (not the junk seen on Ebay) are not done to realize a premium for the applied color, but rather done to mask something else done to the coin such as tooling, filling in imperfections, whizzing, etc.
There is no adjustment to the colour balance nor played with in PS.
Hell, I don't need to exercise.....I get enough just pushing my luck.
Hell, I don't need to exercise.....I get enough just pushing my luck.