This clock illustrates a particular horological idea ? a tourbillon turning about two axes at right angles. The idea is developed from the original idea by A. L. Breguet before 1801, when he obtained the first patent for it. An ordinary tourbillon is very successful at averaging the rate of its balance and spring provided that their axis is maintained at horizontal. However, there is almost inevitably a change of rate as the axis is moved until it is vertical, due to changes in friction at the pivots and in the effect of gravity. A theo-retically correct solution to this problem is to make the tourbillon turn about three axes at right angles to each other, at varying and carefully calculated speeds, but the problems created by such a solution are bound to be greater than the errors to be corrected. An intermediate solution has been adopted in this clock. It is better at averaging the rate of the balance and spring than a simple tour-billon, less complicated than a triple-axis tourbillon. In 1978 Anthony Randall applied for the patent for the double ?axis tourbillon which was granted in 1982. The Movement: Made of full plate brass with brass screws, the eight-day going train driven by a large and powerful keywound mainspring contained in a going barrel. The great-wheel is smaller in diameter than the barrel and spigoted to the end. It meshes with an intermediate pinion having a short arbour pivoted in a brass strap in the pilar plate. The carriage is made of polished brass and rotates about each axis, a large wheel mounted below the carriage meshes with a fixed contrate wheel, the drive to the whole assembly given by a wheel on the crossbar pinion meshing with the fourth wheel. Richard Good?s triple axis tourbillon was sold by Antiquorum, Important Watches, ?Collectors? Wristwatches and Clocks?, Geneva, 14-11-2004. Richard Good R R ichard Good was awarded a diploma with honors from the National College of Horology in 1951 and subsequently worked in the Design and Development department of S. Smith & Sons, where he specialized in watch adjustment. Later he became general manager of Thomas Mercer. There he designed a fuse without lubricant for the atomic bomb of Polaris missiles used in British nuclear submarines. Afterwards he was offered a position as Managing Director of A. & M. Fell. After departure from Fell he went into business on his own account. Charged for a period with the care of the horological collection at the National Maritime Museum, Greenwich, he also specialized in the restoration of complicated watches. It was at this time that he designed a number of limited production clocks, including the double and triple-axis tourbillon time-pieces. In 1978, Good joined the British Museum as Curator of Horology. While there, he collaborated on the "Catalogue of Precision Watches", and began work on the ?Catalogue of Lever Watches?, currently in progress. In addition he wrote four other books and numerous articles. He was a Fellow and silver medalist of the British Horological Institute, as well as being on the livery of the Clockmakers? Company and a Fellow of the Society of Antiquaries.