The phrase describes the process of removing tarnish and dirt from currency or collectible items composed of the precious metal. This can range from simple surface cleaning to more involved restoration techniques depending on the coin’s condition and desired outcome. A common instance involves removing black sulfide buildup from a circulated silver dollar using a mild detergent solution.
Proper maintenance of metallic currency and keepsakes preserves their aesthetic appeal and potential value. Historically, the shine and luster of such items represented wealth and status, while today, maintaining their condition is vital for collectors. Neglecting this maintenance can lead to irreversible damage, diminishing both the visual appeal and monetary worth.
