Llyfr clustnodau defaid a nodiadau ar law-fer
Diagrams and particulars of sheep ear-marks used by farmers in the parishes of Llandrillo, Llandderfel, Llanfor, Llanycil, Llanuwchllyn and Llangower in Merioneth, Llangynog and Pennant Melangell in Montgomeryshire and Llangwm, Denbighshire; a few notes on a system of short-hand writing.
Diagrams and particulars of sheep earmarks used by farmers in the parishes of Llangynog and Llanwddyn, Montgomeryshire, with a few examples from the parishes of Llandrillo and Llanuwchllyn, Merionethshire.
'Clustnodwr neu Lyfr Clustnodau Defaid', being a volume containing diagrams and particulars of sheep ear-marks used by farmers in the parishes of Llangynog, Pennant Melangell, Llanrhaiadr ym Mochnant, Llanwddyn and Hirnant in Montgomeryshire, Llandrillo, Llanfor, Llandderfel and Llangower in Merioneth and Llangwm in Denbighshire, 1827.
Ll. ap Ifan Davies Collection,
Manuscripts of works by Wmffre Dafydd ab Ifan, Llanbrynmair, [1620x1660], and others; accounts, rentals and chapel records relating to Llanuwchllyn, Llandderfel and Llandrillo-yn-Edeirnion, and the Glanllyn estate, Merionethshire, 1785-1878; commonplace books, 1717-1824; letters, mainly to Ivan T. Davies, from O. M. Edwards, T. E. Ellis, Professor Kuno Meyer and others, 1869-1929; and other items relating to the Rev. Ivan T. Davies, 1872-1969.
Davies, Ivan T. (Ivan Thomas), -1931