There were a small number of Military 4 cylinder SIII that slipped through the net early in SIII production. They were essentially the same configuration as the very late SIIa military with wide headlamps and cut guards.
https://www.aulro.com/afvb/images/im...015/09/651.jpg
https://www.aulro.com/afvb/images/im...015/09/652.jpg
https://www.aulro.com/afvb/images/im...015/09/653.jpg
None of the SIII six cylinder got the "SIX" badge

