WWI ARCS devoted service certificate awarded to Mrs Hartigan

Australian Red Cross Society certificate awarded to Mrs Hartigan in recognition of four years of devoted service rendered during the Great War 1914-1919.
The Certificate is made from thick paper with a greyscale illustration of a standing soldier with two seated Red Cross nurses either side. There is a central circle with red border containing the Red Cross symbol.
The soldier is dressed in uniform and slouch hat and is holding his rifle with attached bayonet. Both nurses are wearing their long sleeved dresses, with white aprons and veils. The same red cross symbol in red appears on the apron fronts
The nurse on the left is knitting, while the one on the right is sewing.
The initials of the artist who designed the illustration, Lionel Lindsay, are printed in the shadows of the left nurse's chair.
The details of the award are printed in black cursive writing, with the name of the recipient written in black ink. A facsimile signature of Helen Munro Ferguson appears in black at the bottom of the certificate.
The certificate is mounted within a grey brown matte. The reverse is plain except for a crossed out price.