Papers, 1969-1971, relating to T. I. Ellis's posthumous volume of quiz questions, Ateb Parod: Cwis Siroedd Cymru (Llandybïe, 1971), which was based on questions written for the BBC television series Bob yn Dri (1969).
The file includes correspondence of T. I. Ellis, and later Mari Ellis, with the publishers Llyfrau'r Dryw and Gwasg Gomer, 1969-1971; various sets of questions for Bob yn Dri, mainly arranged by county, 1969; notes in the hand of TIE; and press cuttings relating to both the series and the book, 1969, 1971.