found: Work cat: Joseph, P. Ding Dong Mine : a history, 2014:introd. (Ding Dong Mine is one of the most widely known tin mines in Cornwall) back cover (numerous small tinworks were operating in this area in the 17th century while Ding Dong Mine is mentioned as far back as 1751; in the early 19th century Ding Dong Mine amalgamated with the nearby Wheal Malkin and worked more or less successfully until 1877)
found: Cornwall Calling website, 26 Jan. 2016:mines (Ding Dong Mine, Cornwall; Ding Dong mine is in an old mining area in the Lands End granite mass about 2 miles south of the St Just to Penzance road; in 1714 three separate mines were operating: Good Fortune, Wheal Malkin and Hard Shafts Bounds; by the middle of the 18th century at least seven small concerns had sprung up although the name Ding Dong did not become the usual name until the turn of the 18th century)
found: Wikipedia, 26 Jan. 2016(The Ding Dong mines lie in an old and extensive mining area situated in the parish of Madron, in Land's End, Cornwall, England)