Longcase clock with calendar probably ca. 1720 Clockmaker: Daniel Delander Delander, a former journeyman in the workshop of Thomas Tompion, was another innovative clockmaker who contributed to the superb reputation of English horology in the seventeenth and eighteenth centuries. The eightday movement of this example has rack-and-snail striking and bolt-and shutter maintaining power. It has an unusual duplex escapement that was apparently invented by the clockmaker and used in a small number of his clocks. The maker of Delanders distinctive case is unknown. One of several variants of the same model, this case has a number of features that are rare for the period: the chamfered corners of the base and hood, the hexagonal panel in the base, and the shape of the low broken-arch dial, which is repeated in the outline of the top of the door to the trunk. The dome at the top of the hood is a later addition, as are the finials.. Longcase clock with calendar. British, London. probably ca. 1720