A gilded metal alloy of copper, tin and zinc, was used in France since the 17th Century for candelabra, clocks

Question

and other decorative luxury objects. What is the alloy

Answer 1

Ormolu, perhaps.

Ormolu \Or`mo*lu"\, n. [F. or moulu; or gold (L. aurum) + moulu,
p. p. of moudre to grind, to mill, L. molere. See Aureate,
and Mill.]
A variety of brass made to resemble gold by the use of less
zinc and more copper in its composition than ordinary brass
contains. Its golden color is often heightened by means of
lacquer of some sort, or by use of acids. Called also mosaic
gold.
n : brass that looks like gold; used to decorate furniture
http://dict.die.net/ormolu/

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Answer 2

bronze doré? Gilt Bronze makes the most sense.

Answer 3

Pewter?

Answer 4

brass?