Chelsea 8 1/2" Special Dial Clock & Barometer Desk Set. Standing 12" tall and 21 1/2" wide, this clock and barometer has a truly commanding presence. While Chelsea desk sets in this size are seldom seen, an example with the special dial (raised numerals and serepentine hands) is exceedingly rare. Serial number 111227 dates the set to 1917. The dial is engraved Spaulding & Co. Chicago. The dial has been resilvered. The case has been polished and lacquered. Both the ships bell clock movement and the barometer movement have been overhauled. The set is in perfect condition.