The case recalls prototypes published in Thomas Chippendale’s Gentleman and Cabinet-Maker’s Director. Below the main clock dial are the signs of the zodiac and the phases of the moon. The ring of auxiliary dials indicates the most important cities of the day (clockwise): Philadelphia
John Seymour (1771–1848) - Tall Case Clock. Mahogany, Mahogany Veneer, Maple with White Pine. Works by James Doull and Dial possibly Painted by John Ritto Penniman. Boston, Massachusetts. Circa 1805-1810. 111-3/4" x 21-1/4" x 9-3/4" (283.8cm x 54cm x 24.8cm). Metropolitan Museum of Art.
Longcase Clock, probably ca. 1675–78 Movement by Thomas Tompion (English, 1639–1713) Case: oak, veneered with oystershell-cut olivewood and marquetry panels of green-stained bone, ivory, and various woods, gilt-brass mounts; Dial: brass, partly gilded and partly silvered; Movement: brass and steel