REPORT: Mona & Parys Copper Mines by Thomas W. Jenkins, M.E..
(i) Extract, Parys and Mona Copper Mines pub. in The Geology of Anglesey Vol II Chap. 36 (1919) pub. by the Mona Copper Co. Ltd. July 1928.
(ii) Plan of Mona and Parys Mines drawn up by W.F. Clark & Son, Mining Engineers, Aldridge nr. Walsall.
(iii) Misc correspondence.