Old lode back workings on the PROSPER and GRACE DIEU loads were re-tried between 1910-1912.
The remains visible today result from workings initiated by Liskeard Minerals Ltd in 1937.
In April 1942 60 Royal Canadian Engineers came to the mine and with others deepend the shaft and carried out prospecting work for strategic minerals Tin and Wolfram.
No production was achieved and they left in June 1943.