(Ronald) John Petts (Welsh, 1914?1991), 'Silver Pinnacles', Monotype ink and sgraffito on paper, Signed, titled and dated '1965' to lower margin, labelled verso, 38.5cm x 29.5cm, Framed and glazed Biographical note: Born in London but considered to be a Welsh artist, Petts is perhaps best known as a wood engraver and printer, but also designed stained glass windows, including in 1963 a church window in Birmingham, Alabama which depicted a black Jesus