Clocks, Watches & Scientific Instruments
William Bond & Sons Mahogany Astronomical Floor Regulator No. 152, Boston, Massachusetts, c. 1860, the turned and segmented wooden bezel opens to the 11 1/2-in. silvered brass dial with outer circumferential minutes, subsidiary dials for upper seconds and lower hours, signed William Bond & Sons,/Boston./No. 152 within the hour subsidiary dial, glazed waist section opens for set up and to reveal the original pulley with six crossings, brass-cased weight, steel rod with "T-bridge" suspension, mercury temperature-compensating steel cylinder pendulum and silvered beat scale, eight-day, four-wheel train, heavy brass, five-pillar movement with maintaining power, jeweled on escape, pallet pivots and inset pallets, beat setting thumbscrews on pallet arbor and spring-loaded steel cable follower serves as a winding stop, all attached to a heavy cast iron bracket mounted to the backboard for movement and pendulum support, ht. 76 in.
Note: A closely related regulator by Bond no. 137, is housed at the Collection of Historical and Scientific Instruments at Harvard. The front plate of this movement is stamped "3324."
First finish on case and first silvering on dial, original hands, pendulum, brass cased weight, , lacking one dial attaching screw . Period winding key, No significant repairs or restoration.
The absence of a condition statement does not imply that the lot is in perfect condition or completely free from wear and tear, imperfections or the effects of aging. Condition requests can be obtained via email (lot inquiry button) or by telephone to the appropriate gallery location (Boston/617.350.5400 or Marlborough/508.970.3000). Any condition statement given, as a courtesy to a client, is only an opinion and should not be treated as a statement of fact. Skinner Inc. shall have no responsibility for any error or omission.