Small holes, cracks. Heat metal and run in solder (see Basic Methods: How to Solder Metal). Fill from reverse side if possible. Touch up visible solder line with metallic paint.
Dents. Hold a block of wood over concave side. Gently tap out dent with a rubber or plastic mallet. Work from sides of dent toward the center.
Brass broken. It is best to have it welded. However, you can do a pretty good job by coating the broken edges with epoxy glue and pressing together.
Brass separated from other materials. See
household decorative accessories.
Lacquer worn from brass. Rub off remaining lacquer with lacquer thinner. Then clean brass thoroughly with a brass polish, rinse in water and dry. Apply one or two thin coats of spray lacquer.
Brass plate worn off base metal. Have piece replated by a metal-working shop.
Tarnished. Rub on brass polish. Then rinse in hot soapsuds.