◾️Included Items <Gears> 12 pieces Extra-large size: 3 Large size: 2 Medium size: 2 Small size: 3 Extra-small size: 2 <Mainsprings> 2 pieces ■ Era Late 19th Century to Early 20th Century (approx. 1880s-1930s). During this period, spring-driven pendulum clocks were widely popular in the United States. ■ Country of Origin United States of America Based on the movement's structure and design, it is highly likely to be made in the USA. The contour design of the brass base plate ("H-shaped") and the symmetrical design are typical of American clocks. ■ Purpose Movement for a wall-mounted pillar clock (octagonal clock). This movement is presumed to have been used in a wall-mounted pillar clock housed in an octagonal wooden case. ■ Materials • Base plate, gears: Brass • Mainspring: Tempered steel (spring steel) • Pendulum base, gong: Cast iron • Screws, pivots, etc.: Steel ⸻ Features and Highlights • Brass base plate: Features a beautiful golden frame and gears, a characteristic structure of vintage clocks. • Spring-driven (2 springs): One for timekeeping and one for striking. The thick mainsprings are clearly visible. • With pendulum unit: A spiral-shaped acoustic spring (gong) is attached to the black iron base at the bottom, suggesting it has a striking function. • Size: Approximately 20cm in total height as measured, a suitable size for a household wall clock. ⸻