The sole record of this 'mine' is a tracing of a plan of the St George & Hanover mines, c1820. The rights to the riches of this headland have remained with Duchy of Cornwall, and as a result records are scarce.
Cliff outcrop workings have been attributed to the operations of this 'mine'. The primary product is unclear, however it is likely both copper and tin were returned.
Data courtesy of Ben Sum, Helston (12/5/18)
NB: CRO = Cornwall Records Office, Truro (Soon to be Kressen Kernow, Redruth)
References:
[CRO] miscellaneous accession