William Purinton, Lancaster, New Hampshire, 8-day wall timepiece, or "New Hampshire Mirror Clock" Circa 1820. William Purinton worked in Portland, Maine; Vassalborough, Maine and Lancaster, New Hampshire. A picture of the movement is shown in: "Willard's Patent Time Pieces by Paul Foley, pg. 96" and another example showing the movement and case of the same design is found in: "New Hampshire Clocks and Clockmakers" by Charles Parsons, pg. 204.