When was "Clock" created?

This artwork was created ca. 1775–80.

What medium is "Clock"?

Clock is Marble, bronze and gilt-bronze; chapter rings of white enamel; movement of brass and steel.

Yes, Clock is in the public domain and available for free download under CC0 license.

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Clock was created by Jean-Baptiste Lepaute|Pierre Philippe Thomire|Louis Simon Boizot|Pierre Henry, called Henry Lepaute in ca. 1775–80.

Jean-Baptiste Lepaute|Pierre Philippe Thomire|Louis Simon Boizot|Pierre Henry, called Henry Lepaute, ca. 1775–80