Obvious At Coin.......

AT. That kind of color/pattern is consistent with exposure to extreme heat.

ICCS is not in business to reassure the buyer/collector,they offer no guarantees.They exist solely to provide sellers marketable packaging for coins.

I don't need to molest my coins to know what artificial toning looks like. Once you've seen enough coins it's pretty easy to tell NT vs AT in most cases. It's not easy to explain the difference, but I will give it a go.

Evidence of NT:

- occurs most readily on areas with original mint lustre. A NT coin will have a more gradual progression of colors (see DE59's coin for a good example)
- will vary in color depending on the depth of the devices. This is known as elevation chromatics. Crevices in the coin will typically tone more slowly than the relief.
- it will rarely be 100% toned, due to contaminants and other factors, there are often specks or small areas (even on the relief) which remain untoned or barely toned.

Evidence of AT

- coin can be lacking lustre, yet still have "monster" colors. eg the OP's coin
- abrupt color changes
- no elevation chromatics
- the toning will appear to be "painted on" or "float" on the surface
- there will be few "breaks" in the toning
- certain colors are often found on AT coins. Especially darker "clown colors", particularly purple and orange

well Poker, I have owned well over 50,000 coins and every coin in the Canadian decimal series more than once. With a few exceptions of course...I have seen countless amounts of toned coins , both kinds.... Toning can occur anywhere on a coin at anytime . doesn't much matter really the coin is what it is ...And as I stated to another member just look at that purple half dollar and just about all his other coins.?

call it At or NT . Its a nice coin and some people like it others dont .Thats coin collecting at its best always something to chat about

Not recently.

Old holders yes. There were plenty.

Presently, PCGS has cracked down so much on artificially toned coins, one could say they have gone too far in this direction and they have bodybagged coins that would make all of us scratch our heads asking 'what were they thinking?'

I love toned coins, especially Morgan's, and am working on a date set of them AT'ed ... but will not pay much over spot for AT'ed coins...
IMHO the topic coin is definitely AT... 271105197852 definitely AT & 281025140512 I'm not sure about... That one could be NT but I'm leaning towards AT also.
I disagree in them being "burnt" they were done with electrolysis such as a shown in the link that was posted. People can get ANY pattern they want on coins this way, some people apparently make a good living off it and they wouldn't do it if they wern't darn good at it. While some look alike, others were done to look how the maker wanted. The topic coin looks to have been done as in the video. Can I do it or have I ever tried? No, nor would I, but for around spot if I like the coin I'll buy it for a date set Dansco.

ICCS might grade those as NT but as mentioned there is no way that PCGS or NGC would.. And your right PCGS was given a great eye appeal grade & give a coin a slab if it is NT'ing and it can substantially add value, but again IMHO those examples wouldn't get that designation... And most graded are rainbow, much less are total coverage.
(Sorry, I forgot those are old slabs, your right no more, but even the old ones most were crescent rainbow, & most are NT)

I would not own a coin that looked like that, no way, no how. I'd sell it for scrap.

Artdio, I don't have a low grade silver dollar, and I'm not going to ruin any silver coin by burning it. Ask any expert on here and they will tell you that the coin is artificially toned. Here's my challenge. Since you seem to have low grade silver dollars lying around, burn one until it looks like the original one, and send it to ICCS. Then you'll believe it. Send the same coin to PCGS... Nope! PCGS doesn't certify AT coins, ICCS does. They are still genuine coins, so ICCS will take them.