Between 1808 and 1833, Terry focused the majority of his time and effort on the production of standardized wooden clocks, which helped him accumulate a modest fortune. By 1833, he was sufficiently satisfied with his material success. At this point, he abandoned involvement in quantity production, and returned to clockmaking as the world had known it before his innovations, focusing on the production of a few high-end special clocks and the development of original clock mechanisms. He also spent considerable time helping along the businesses of his sons. He continued with this small-scale clock production until his death on the last day of February 1852.