Should I polish old silver and brass before taking them to auction?

Often it is better not to. Many buyers of antique metalwork like to see the original patina, and aggressive polishing can remove fine details, hallmarks, plating or decorative finishes. On some bronze and certain brass pieces especially, the aged surface is considered part of the value.

For sterling silver tableware, a light cleaning is usually acceptable and some buyers prefer it to look bright, but it is not necessary for selling. Auctioneers sell tarnished silver every week, and buyers know how to clean it. Silver plate needs extra care because heavy polishing can wear through to the base metal.

If you are unsure, leave items as they are and ask your auctioneer. They know what buyers in their market prefer and can tell you if a quick cleaning would help or if the piece should be sold exactly as found.