Hump-back The "hump-back" model of Breguet carriage clocks was often used, both by the house of Breguet and others, such as Cole in England, two hundred years after its creation. Recently, Breguet issued a very small series of silver "hump-back" carriage clocks, which look practically identical to their predecessors. Westminster carriage clocks are "exceedingly rare", in the opinion of Charles Alix, the author of "Carriage Clocks" (Woodbridge, 1974). Very few are known: one by Henry Capt, another by Dent, and a third by Le Roy. This is the only Breguet carriage clock with Westminster Chimes to have appeared on the market. The notes of the Westminster chime were originally known as the "Cambridge chime", that is, the chime of Great St Mary's in Cambridge, where a new clock was installed in 1793. It is generally thought to have been composed by William Crotch (1775-1847). Crotch was a child prodigy who at the age of 11 was assistant organist at King's College, Cambridge. In 1859 Crotch's tune was chosen for the new clock and bells in Westminster Palace. A. A. Polotsow (1832-1909) Was Russian Secretary of State, as well as a manufacturer, politician and passionate collector. He was the son-in-law of Baron Alexander Ludvigovich Stieglitz (1814-1884). With the help of Polotsov, the Baron established the well-known Baron Stieglitz Museum, which still exists today.