Background
Powell was born in London. He was educated at Bedales School, of which his father was co-founder.
Powell was born in London. He was educated at Bedales School, of which his father was co-founder.
After he completed the course he opened his own bindery, then became a partner with Sandy Cockerell in the major bindery of Cockerell & Son in Letchworth, Hertfordshire.
He served as a signals officer in the Royal Flying Corps in World War I and then became a poultry farmer. In 1930 he began training as a bookbinder at the Central School of Arts and Crafts in London. He also taught part-time at the Central School until 1943, when he moved to the Royal College of Art, where he taught until his retirement in 1956.
There he was succeeded by his best pupil Peter Waters.
Powell left Cockerell & Son in 1947 and again set up his own bindery in Froxfield, Hampshire. Here he did some of his most notable work, including the rebinding of the Book of Kells and Book of Durrow in 1953, the Lichfield Gospels in 1962, and work on many other important historical manuscripts.
He studied, but did not alter, the oldest European leather binding to survive, that of the Stonyhurst or Street Cuthbert Gospel, and his two chapters on the binding in books edited by Battiscombe (1956) and Brown (1969) remain the most important literature on the subject. They worked on the conservation of the many books and manuscripts damaged in the Florence flood of 1966.
Powell was appointed an Officer of the Order of the British Empire (Officer of the Most Excellent Order of the British Empire) in 1976.
Fellow binder and collector Bernard Middleton described Powell as "one of the most important and influential bookbinders of the last hundred years and, arguably, of any period". In his monograph on the Book of Durrow, Bernard Meehan, Keeper of Manuscripts at Trinity College Dublin, described Powell as "the leading bookbinder of his day".