Printmaker, was commissioned for various bookplates which frequently appeared in Art in Australia between 1923 and 1925. The popularity of Warner's prints seemed to decline when his works started to display greater consciousness of the workforce and less of 'tranquil' sceneries of the outback.
'Illustration of a ship and landscape flanking a cross with a Tudor rose at its centre, (1927), in The Age of Ex Libris: Bookplates from the Library's Collection, Baillieu Library catalogue, University of Melbourne, Vic., [1996-02-06/1996-04-30], unpaginated'.