‘Yr Wyddor Gymraeg’ (the Welsh alphabet), a 17.5 x 25.5 cm linocut on 145 gsm Zerkall paper. Unlike the English alphabet, yr wyddor Gymraeg has no letter K, Q, V, X, or Z, and in contrast again yn Gymraeg the following are all individual letters: Ch, Dd, Ff, Ng, Ll, Ph, Rh, and Th. Ff is pronounced like the English F, and Welsh F like the English V.
https://www.julianbrasington.co.uk/prints/p/yr-wyddor-gymraeg