[Robert Sexton]

Some other markings that were on the Humber, I do not what units they might have been associated with.On the front left of the bonnet was what looks like might have been crossed swords perhaps red on a yellow background.I have attached a pic of the "one" roundel on both doors and the Kangaroo which was on the back left panel of the cargo body.
21st Construction was based in Perth ,it may have belonged to them.
Robert