Sample 1:

  

Very similar to Rhodesian version, but thicker canvas and much more padding around shoulders.  Pouch closures are wood toggle loop, like chicom chest rig.  These vests were used before the nylon Niemoller equipment.

On 1st Pattern Recce Jacket:

This vest was very similar to the one used by 32 Battalion from 1979 – 1981:

From http://www.32battalion.net/32%20Battalion%20Equipment.htm

Comparison with Rhodesian Predecessor: