Awesome! W.F. STANLEY Sighting Inclinometer in its Original Wooden Case

One of the most unique sighting inclinometers I’ve ever seen! The tool is meant to be suspended by the eye at the top, and when the brass knobs are turned the lead weight moves causing incline of the brass assembly to change at a measured amount. Found in its original box which retains the original label. Box shows some wear but the tool is excellent. The only example I’ve seen or know of. Tool measures 14″ x 9″. A special inclinometer.