Kennedy Halves - Crazy Toning

No way these are NT right?

 

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Not even close.

 

I didn't think so. The colors are really pretty though.

 

Left out in the sun too long. I'd guess no, not later dates like these.

 

Any idea what it's done with. Just curious.

 

Shoved in a potato and baked in the oven.

 

Definitely from a heat source

 

The bottom three look heat toned. The top one might be as well, but could just have been in a Tupperware container with an egg for a while.

 

It's the " Potassium " in the potato, that makes them color ..

 

Interesting. Thanks guys

 

Toning is silver sulfide. One way or another, sulfur has been introduced to the silver under forced conditions, and you're seeing the result. When that sulfur is introduced more gradually - under conditions we're more likely to call "natural," things like the circles on the last Kennedy don't happen. That one looks to have been chemically stripped and poorly rinsed, leading to areas where the toning didn't "take" when forced upon it so strongly.

These are some badly abused coins.

 

They came out of a box I searched yesterday so I'm not out any $$. They are going back to the dump bank tomorrow.

 

Shake and bake. Not even close to reality. Could have been gassed.

 

At my age I need the potassium more than the toning. Waste of a good tato.

 

No it is NOT! It's the sulfides produced from heating them and subsequently reacting with the coin metal.

 

I'm not a fan of chemically altered coins...but to each his own.

I read an article about a last who bought several rainbow toned quarters on eBay and took them to a coin grader. Not one was authentic and chemically induced. Usually, when natural the toning can be vivid but still remains subtle in its distinction.