stuck coins - oven trick

MDMike

Senior Member
Joined
Jun 16, 2007
Messages
442
Location
Charleston, SC
I found a coin, registered a penny on my XLT, yesterday. But as you can see, it has alot of crustiness to it. It has soaked in PB blaster since yesterday. PB blaster is like WD40 but better and stinkier. So I'm messing around with it right now and picking at it when 2 distinct shapes begin to appear. Can't see the metal just yet, but the size and sound are of pennies.

Anywho, just read about where someone else came across the same sort of thing and someone suggested to heat it up to 250 and cool it rapidly so I figured, why not.

This is a real time test for anyone else still up like me. The oven is heating up as this is written. I'm going to go for 30 minutes in the oven starting now.

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30 minutes have elapsed at 250F. Dropped the coins into an ice bath and a few bits of sand came off.

And now because I like to hit things with a big hammer, it's back into the fire at 500F for 30 to see what happens.
 
Apparently, the one coin didn't like the hot box and ice bath as much as the other one.

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so now I will just chip away at the sediment with a dental pick.



EDIT: And the verdict is a 1981 Lincoln.
 
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