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  #1  
Old 07-06-2019, 09:17 PM
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CharlieT84 CharlieT84 is offline
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Default Mercury dime CRUSTY

I didn't know silver could get this bad.
I have tried vinegar and baking soda but it did not help much.
It is hard to tell the date. My best guess is 1918.
I am not concerned about reducing the value of the coin.
Can this be cleaned up better somehow?
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Old 07-06-2019, 09:45 PM
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You could try electrolysis. I haven't tried it yet myself, but I'm going to learn how shortly.

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Old 07-06-2019, 11:39 PM
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When they are like that I sell em for sure.

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Old 07-07-2019, 05:51 PM
Charly-in-CT-RI Charly-in-CT-RI is offline
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It looks more like a cookie and it will separate into thin layers if you try to clean it.

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Old 07-07-2019, 07:06 PM
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It rang up as a 21 on the Nox 800. Thought I was digging a penny.

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  #6  
Old 07-11-2019, 02:00 PM
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I don't think you're going to be able to help that poor dime very much. Whatever you attempt will most likely remove what little detail is left. Good luck!

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Old 07-11-2019, 05:42 PM
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YES!!! This method will return a coin to nice shiny condition but will not restore the wear. Line a container with tin foil & spread 1/4" baking soda in it. Place the coin in the center on the baking soda. Spread another 1/4" baking soda over the coin. From the side add boiling water slowly, being careful not to wash the baking soda off the coin.....pour slowly until all the soda is covered and "boiling". Let sit 15 minutes then pick up the coin and gently rub between your fingers. Repeat the process until the coin is as shiny as you want it. This method really works!

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  #8  
Old 07-18-2019, 10:45 PM
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Looks like compacted soil, try alternately freezing it and then dropping it in boiling mineral oil. Soak it in hot water with a little soap before putting it in the freezer for 20 minutes.
It make take 3 or 4 runs before you start seeing the crust cracking up and falling of.
This has worked for me before, but on some tough ones I've used a blowtorch to gently heat the coin, then toss it in ice water. Too much heat will corrode the coin, so be careful.

Electrolysis would be the next step after removing the compacted crud.

whatever you do, be patient and don't use anything abrasive on it.

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  #9  
Old 07-19-2019, 05:43 AM
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That coin looks as itís been fire-scorched. Iíve dug a burnt Morgan dollar and seated quarter in the past.

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  #10  
Old 07-19-2019, 08:13 AM
waltr waltr is offline
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Originally Posted by amc rulz View post
That coin looks as itís been fire-scorched.
That is what I am thinking.

This one might be very hard to clean and might be best to leave it as is or just mild electrolysis at most.
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