Should start a thread to put any Series 1 in-service photos.
I just found one under camo net with 3RAR in Korea in service at, or as, a CP (serendipity whilst searching for others stuff - the AWM dbase - i reckon the search function needs meds sometimes)
"Australian soldiers and Korean labourers in the process of building a bridge over a creek near the 3rd Battalion, The Royal Australian Regiment (3RAR), Battalion Command Post (CP). Two signs have been erected, one at the rear pointing to the 'SIGNAL OFFICE AND MESSAGE CENTRE', and one (right) saying '3BN RAR CP'. Note in the foreground the Commanding Officer's camouflaged land rover."
[There is also a cammed up CCKW in the background.]
http://static.awm.gov.au/collection/images/screen/HOBJ2266.JPG