astronomical glass pendulum with full calendar, white marble base and roofing, gilded, polished, 4-sided faceted glass, elaborately worked, shows moon phase, month, day of the week and date, white enamel numerals ring with gilded bezel with roman. numerals, blackened breguette hands, dial with brocot escapement above, gilded glass rim with faceted glass, pendulum movement with 1/2 hour strike on bell, mercury compensation pendulum, movement runs, h. 40cm, w. 23cm, d. 17cm