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.
HornsbyWaterClock SwissClockDiagram. en Hornsby water clock detail of plaque showing diagram showing general layout of Swiss pendulum clock own PeterTruth Hornsby water clock
Page 2023 Free-images.com. All images are Public Domain