A French marble mantel clock with open escapement by Marti, F. Marti clockmaker, Paris, late 19th century with a white enamel annular dial, Roman numerals, and a visible brocot escapement, the gong striking movement signed Marti, in a large classical two-tone black and variegated brown marble case with incised floral decoration, with key and pendulum. Height 39.5 cm, width 30 cm, depth 16 cm