Margaret Howell's pebble collectionMargaret Howell’s utility overalls and merino knitwear have always had an air of the seaside to them, evocative of the rural landscapes and beaches near her seaside home in Suffolk. When not designing her eponymous clothing line, Howell likes to collect pebbles. But not just any pebbles – only those which come printed with naturally occuring numbers and lettering, caused by the motion of the sea. They embody both t...