VICTORIAN ONYX MANTLE CLOCK WITH MARBLE INLAY: Unmarked as to maker. Heavy black onyx case with marble inlay and half columns and incised designs. Enamel face with roman numerals, key and pendulum works. Beveled glass bezel. Comes with certificate from British Antique Exporter Limited dating clock to 1880's. Measures 13'' high x 10'' wide x 5'' deep. Missing key and pendulum.