watercolor : remove stains with poster putty.
oil : To brighten up the colors, rub with cut onions in half.
Wipe with a flannel cloth soaked in linseed oil.
Wash with water, soap and a few drops of ammonia, dry and grease lightly with oil.
Rub with salt and rub lightly with linseed oil. Or go on a piece of hot iron soap dry and then iron a piece of paper.
Keep them clean with brush cleaner. To revive, put on the steam of a pot of boiling water.
Wipe with cotton wool soaked in vinegar and dry with chamois leather.
Gold and precious stones with a soft brush to wash them in alcohol, dry with bran or deerskin.
Silver let it soak for several hours in alcohol pure, then assciugarli with bran or deerskin.
of enamel wash them in water with mild detergent, dry with very fine sawdust, and wipe with a chamois leather.
To maintain the softness, always store the objects well dusted with talc, especially in the folds.
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