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Old 10-02-2009, 12:55 PM
NiagracountyNY NiagracountyNY is offline
Elite Member
Join Date: Mar 2009
Location: Niagara county NY
Posts: 580

I tend to like the green Patena myself.On old copper tho I use warm Peroxide and let the coin soak in it a few days.I keep it warm by using a small po pourie(prob spelled that all wrong) electric warming plate.As long as the solution is warm it will keep bubbling/cleaning.I wouldnt clean anything that is valuable.Good Luck ,Happy hunting.
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