Sigsbee-sondeermachine before 1880

"Sigsbee-sondeermachine" is a photograph of a machine used in the 19th century for depth sounding, created by an anonymous artist. It appears to be a plate from a scientific publication, possibly a book about maritime engineering, given the text surrounding it. The photograph shows two views of the machine, which appears complex with multiple gears and pulleys. The image offers a glimpse into the history of maritime technology and the development of tools used for oceanographic research.