rub onto brass or copper with a soft cloth. rinse with water and dry.
lemon juice and cream of tartar. make a paste of lemon juice and cream of tartar. apply, leave on for 5 minutes, and then wash in warm water. dry with a soft cloth.
the first secret was ketchup. ketchup is great for cleaning brass, even spaghetti sauce will clean copper effectively.
cleaner for brass: make a paste of vinegar (or lemon juice), salt and corn meal. the corn meal helps make it easier to spread on an item and the vinegar /lemon juice and salt do the work.
to clean brass: place item in a pan of tomato juice and 