This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Pendulum clock of John II Casimir. Pendulum clock of John II Casimir detail Zegar wahadowy Jana II Kazimierza fragment Gilt brass cm Stolen in from the Przypkowski Museum in Jdrzejw The mechanism signed Gohier Paris engraved inscription Pour le Roi de Pologne Jean Casemir Probably the first pendulum clock in Florence in the ebony