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<p>[QUOTE="WingedLiberty, post: 1282876, member: 26030"]Rev and Collection66 ... Good questions!</p><p><br /></p><p>I rely on PCGS to ferret out AT coins, however I know they miss some. I bought this because I liked it and thought it was beautfiul. Could this coin have been intentionally toned, it's possible -- however with the PCGS blessing for "natural toning", the market interest will tend to be high. </p><p><br /></p><p>To my eye, this is a good example of "rainbow rim toning" and that usually develops when coins are placed in an album with cardboard pages -- and the coin reacts to chemicals in the cardboard working it's way in from the rim (where the coin touches the cardboard). In this case, the edges of the coin tone, while the coin centers remain untoned.</p><p><br /></p><p>This rainbow edge effect was enhanced by a carefully correographed photo and effective placement of lighting so the fields (smooth background of the coin) turned dark (nearly black) and the design elements of the coins (the raised parts) turn white (light up). I have heard this effect called "black and white mirrors" a similar effect can be teased out of Deep Mirror Proof Like coins. </p><p><br /></p><p>So what you end up with is, visually, in the photo, the rainbow toning in the fields (which become very dark in the photo) disappear to the camera -- and only the rainbow on the white (cameo) elements are visible. </p><p><br /></p><p>What's interesting to me is this photo was taken by Heritage Auctions, and usually their photos are a bit lack luster -- they did a super job of photographing this coin and really brought out the nice toning.</p><p><br /></p><p>This is a coin that will look quite different using different lighting and viewing angles -- something that is often true with toned and especially toned proof coins where the toning tends to be very thin and nearly transparent.[/QUOTE]</p><p><br /></p>
[QUOTE="WingedLiberty, post: 1282876, member: 26030"]Rev and Collection66 ... Good questions! I rely on PCGS to ferret out AT coins, however I know they miss some. I bought this because I liked it and thought it was beautfiul. Could this coin have been intentionally toned, it's possible -- however with the PCGS blessing for "natural toning", the market interest will tend to be high. To my eye, this is a good example of "rainbow rim toning" and that usually develops when coins are placed in an album with cardboard pages -- and the coin reacts to chemicals in the cardboard working it's way in from the rim (where the coin touches the cardboard). In this case, the edges of the coin tone, while the coin centers remain untoned. This rainbow edge effect was enhanced by a carefully correographed photo and effective placement of lighting so the fields (smooth background of the coin) turned dark (nearly black) and the design elements of the coins (the raised parts) turn white (light up). I have heard this effect called "black and white mirrors" a similar effect can be teased out of Deep Mirror Proof Like coins. So what you end up with is, visually, in the photo, the rainbow toning in the fields (which become very dark in the photo) disappear to the camera -- and only the rainbow on the white (cameo) elements are visible. What's interesting to me is this photo was taken by Heritage Auctions, and usually their photos are a bit lack luster -- they did a super job of photographing this coin and really brought out the nice toning. This is a coin that will look quite different using different lighting and viewing angles -- something that is often true with toned and especially toned proof coins where the toning tends to be very thin and nearly transparent.[/QUOTE]
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