A notebook kept by William Williams, a Merionethshire farmer and/or butcher, in the mid nineteenth century, containing diagrams of sheep ear-marks used on farms in Merionethshire, mainly in the parishes of Trawsfynydd, Llanfachreth, Llanuwchllyn, Llanycil, Llanfor, Ffestiniog and Llandecwyn, accounts relating to the sale of joints of meat in the Ffestiniog and Trawsfynydd districts, and miscellaneous accounts and memoranda.