How to clean coins using electrolysis, very easy to do. Salt, water, a old mobile charger 1.2A and a pair of cocrodrile pinces. We clean a 1964 peseta alloy and a 1870 10 gramos copper spanish coin. Remove all the rust.This process could ruin the value of your coin! Get advaice before going ahead!!... By: CrazySurvivalSt