Licences (take notes) and leases by William Ormsby Gore, Mary Jane his wife, John Ralph first Baron Harlech and William Richard second Baron, of lead, copper, manganese and other minerals under the farms of Rhosiger in the parish of Llanfihangel-y-traethau, Farchynys Fach, Sylfaen, Goloedd, Tyddyn Pandu and Gallwyn Bach, all in the parish of Llanaber, Llechwedd Ddu, Llety near Harlech (map incorporated), and Graig Isa and Graig Ucha in the parish of Llanenddwyn. The lessees are James Hollow of Lelant Hayle, Cornwall, and Crown Court, Old Broad Street, Middlesex, 1859, John Parry of Dolgellau, 1862, David Morris of Sylfaen, 1862, John Morris of Dolgellau, 1862, Owen Hughes and Robert Williams of Harlech, 1862, John Edward Parry and others, 1864, William Milford of Bontddu near Dolgellau and William Northey of Goginan, 1876, George Bargate of Barrow-in-Furness, William George Ainslie of Westminster and Edward Hadham of Dalton-in-Furness, 1886, and Henry Miles and John Miles of Dolgellau, 1888. There are also letters to Mary Jane Ormsby Gore from Robert Griffith of Festiniog relating to the lease on Tan-y-grisiau slate quarry, 1864.