The National Archives of Australia Adelaide office holds records of the state’s early postal workers so I checked to see if either of my William Chapmans (father and son) were there. I found some of their pay records and a photo of my 2x great uncle William Chapman Jnr. The photo held by the National Archives appears to be the original as it is in an old cardboard frame with faded writing on it. I was able to take a photograph of it but unfortunately I can’t reproduce it here due to copyright restrictions. I can however show you what it looked like when it was printed in The Register on 18 March 1925 on William’s 81st birthday with a long article about his life’s recollections. William died in 1930 aged 86.
View William’s profile in my family tree here: http://kyliesgenes.com/individual.php?pid=I1205&ged=WillisonFamilyTree16Nov2011.ged