A group of about one hundred and eighty business letters, 1880-91 (with some of the period 1897-1908), largely written by George W. Farren, general manager, Welsh Granite Company Limited, Yr Eifl Quarry, Trevor, Caernarvonshire, to his foreman, Thomas Hughes, Cae-glas, Llanaelhaearn. Some letters refer also to emigration and to the Welsh Granite Company's School.