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:
Shaduf. William Jay Dana from an original sketch or watercolor by John Douglas Woodward en Caption center smallcaps shadf The weight of the water in the bucket is balanced by the lump of Nile mud at the other end of the swinging beam and the water is thus raised tothe mouth of the canal with little effort but pulling down the bucket