Toasted Clads Dimes...?...?

[Twinkletoes]

Here are a couple of toasted clad dimes I found with my White's XLT. The coins were found on a farm that dates back to the 1840's but hasn't been farmed for a few decades. I assume that farm fertilizers are to blame for the condition of these coins, but I've never seen any this bad before. They were both about an inch deep. I can read part of the date on one and it's from the late 1990's. Anyone else found coins like this? Any ideas how they got this way? Thanks, Tt

 

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[enamel7]

Yepper, I believe that was caused by fertilizer.

 

[RobRieman]

Animal piss has a lot to do with it too. Any livestock on the farm?

 

[Deft Tones]

Anhydrous ammonia. Widespread use around here. Very corrosive.

It's ammonia that does this.

 

[rogueaviation]

I found a few of those in my front yard. I would guess fertilizer too.

 

[Welgund]

Alkali does that to clad in my area