Commander (equiv to Brigadier): Cap Badge
Commander, Shoulder Badge: small GF badge with wreath underneath and three stars
Deputy Commander, Shoulder Badge: small GF badge with wreath underneath and two stars
Senior Commandant, Shoulder Badge: small GF badge with wreath underneath and one star
Commandant (Equiv = Major): small GF badge with wreath underneath
Photo by, and displayed with permission of Peter Garratt
Assistant Commandant (Equiv = Captain ): 3 Jerry Cans pre 1979
Assistant Commandant (Equiv = Captain )
3 Stars post 1979
Photo by, and displayed with permission of Peter Garratt
Junior Commandant II: 2 Jerry Cans pre 1979
Junior Commandant II: 2 Stars post 1979
Junior Commandant II was equivalent to a Lieutenant
Junior Commandant I, equivalent to a 2nd Lietenant had one jerry can or star (not pictured)
Keep Commander wore the cap badge with laurel wreath as a badge on his sleeve (at same position as stripes would be)
A Deputy Keep Commander wore the cap badge (without laurel wreath) in the same position (not illustrated)
Keep Warrant Officer (Worn on wrist)
Keep Senior Sergeant
Keep Sergeant
Keep Corporal
Junior Corporal
and of course, Guard.
I never saw an African GF Officer, KC or Dep KC.
Europeans only transferred from KC to Sgt on taking on an infantry role.