Cox O.W.S., David (1783 – 1859) – Wales; a mill at ‘Rhiwlas’, Montgomeryshire. Cox O.W.S., David (1783 - 1859) Wales; a mill at 'Rhiwlas', Montgomeryshire. Watercolour. Signed and inscribed. Provenance: 8x12 inches. Framed: 11x15 inches. Sold Favourite See available works by this artist.