I don't think ol'sagittarius is keeping any cleaned clad, and its probably a heck of a lot safer for him. Stick with the tumbler homie.
Read what I posted. If he is cleaning coins and they are not for him that would imply that they were for another collector to find and enjoy. Tumbling the coin will
destroy all numismatic value if there is any and some clad does have numismatic value. Acetone as I described above is the ONLY cleaner that will not destroy
the coins luster nor show remains of cleaning.
I don't think ol'sagittarius is keeping any cleaned clad, and its probably a heck of a lot safer for him. Stick with the tumbler homie.