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Old 05-28-2017, 07:45 AM
Jacko34 Jacko34 is offline
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Join Date: May 2017
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Default Cleaning a penny with rough grime on it

I recently dug up a penny with some rough grime on it. It looked almost impossible to get off, but I didn't do anything to it because I did not want to ruin the coin too much. The coin is unreadable. Nothing on it is visible. How do I go forth cleaning this safely?

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Old 05-28-2017, 08:04 AM
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bruinvikes bruinvikes is offline
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Join Date: Dec 2011
Location: Curtice, Ohio
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Start with warm water, dish soap and a toothbrush

Fisher F70, Fisher F22, Fisher F2, Simplex+, Bounty Hunter 101, 2021 clad: $2.71, Silver coins: 3, Indian heads: 0, Wheaties: 2, Gold rings: 0, Silver rings: 0, Total since detecting: Silver coins: 42, Gold rings: 5

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Old 05-28-2017, 10:30 PM
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BaldAssCat BaldAssCat is offline
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Location: MA
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I like to let them soak in water for a few days. Sometimes it softens the grime enough to clean off using a water spray or a light rub from a splintered toothpick. If it doesn't work then no harm done and you can still try other things if you want.

ATPro, BH Challenger, Pro Pointer

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Old 05-28-2017, 10:42 PM
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Mikey48 Mikey48 is offline
Join Date: Aug 2016
Location: Michigan
Posts: 678

Ditto +2 Warm water and dish soap. Don't be in a hurry. Some of that crud will soften up over a few days.
Use the wooden toothpick as described after that to see if it is releasable.

Note: If it's a zinc cent, it most likely will be internal corrosion and that is a dead end for the zincoln.
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Old 05-28-2017, 10:51 PM
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CJ319 CJ319 is offline
Join Date: Dec 2016
Location: Bryan, TX
Posts: 381

Leave it as is and tell everyone its an 1859 Indian head. When they ask how you know it is, ask them how they know it isn't.

Garrett AT Gold/Minelab CTX3030-Oldest coin 1806 King George III

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4 members found this post helpful.

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