CLEANING BRONZE, COPPER & BRASS
Wash and clean in warm soapy water, use an old stiff toothbrush to get as much dirt off
as possible, then put to soak in a plastic container filled with household paraffin. Remove the item from the paraffin from time to time and brush with the stiff toothbrush to get into
any small crevices, or lettering in coin legends. For the more persistent residue use a small screwdriver, filed to a point. Use one from the cheap plastic boxed sets (usually less
than £2.00). This is ideal to clean out lettering - but be very careful not to scratch too hard and end up marking the metal, or any patina that is present. Then give the item a good brushing with the stiff
toothbrush. When you have cleaned down to the metal, or patina (if present), dry off the paraffin, wash and clean in warm soapy water, and then give a final dry.