An Irish silver basket by William Townsend and engraved with the Hartstonge coat-of-arms was sold in These Rooms, 21 October 2003, lot 373.
The figural stem of this pair of candlesticks is based on a 1747 model by Ernest Sieber (overstriking the mark of Lewis Pantin) which is illustrated in Arthur Grimwade, Rococo Silver: 1727-1765, 1974, pl. 75A.