c1939-42 World War II recruiting poster 'Join the A.I.F. This is Serious! Enlist Now', artwork by James Northfield, authorised by the Director General of recruiting, printed by F.W.Niven, Melbourne, colour lithograph, linen-backed, size 48 x 70 cm. Condition A-. (Iluustrated on page 20 of 'James Nortfield and the Art of Selling Australia').