His bronze patinas of reptiles, insects and fish are also remarkable.

Cleaning and conservation in 1988 have restored their original antique bronze patina.

But once the sculpture was treated with sodium bicarbonate, a rich bronze patina began to emerge.

These figures are referred to as Moors because of the dark colour of the bronze patina.

The silver was black as night with lack of care, and a dark, old bronze patina had coated over the gridwork at the back.

The bronze patina has become discoloured by rain and will have to be cleaned.

The burnishing that creates the bronze patina costs $2 more per shoe.

The third, his bronze patina perfect once more, was Colin.

The bust was among the works that surfaced, but with a bronze patina added in the 19th century.

The medal is 44 mm across in a bronze patina in the shape of a four pointed star.