Maker, George Jamison, Charing Cross, London, England, c. 1800. Movement net 18"h x 8"diameter, overall with base 22"h x 10.5"diameter. Two plane anchor escapement with divided lift, i.e. the two pallets are in different planes relative to each other. One half second pendulum with engraved silvered Earth globe as the bob. Rack and pinion striking on the hour. Two train chain fusee, with Harrison maintaining power, eight day duration. Silvered chapter rings and fire gilt ormolu decorations and tripod frame.

Below are two other clocks of similar design, probably one or both were the ones referred to by Albert Odmark in his comments. Both are signed examples and of identical design. While the current clock, third photo, is generally accepted as being by the same maker, there are subtle differences in the profile of the tripod feet and pillar turnings as well as the size of the hour bell.