This is a 20th century, Mid-Century Modern, Hollywood Regency style vintage 1960's lucite and brass wall mount pendulum clock that was designed by George Nelson for Howard Miller. George Nelson (1908 - 1986) is known as one of the founders of American Modernism and he was the Director of Design for the Herman Miller Furniture Company. The estimate is based on actual recent past recorded auction sales of comparables. Retail 'asking prices' can be higher and vary.