kelsey jig operation Auberge des Rives
Dec 02 2024· That operation shut down in the late 1980s and the first commercial use of the jig was at the Renison tin mine in Tasmania in 1992 By 1995 there were 36 machines operating at 28 mine sites Kelsey said the device took about 10 years to perfect to that level De Hoog said the jig lent itself particularly well to dealing with tin