Sample 1: 

jacket2_1_frontjacket2_2_back

31bnchest

Portuguese-style jacket as used by bushmen of 31 Battalion (?).  South Africa produced (source: http://www.newrhodesian.ca/viewtopic.php?p=14555#p14555).

Sample 2:

jacket1_tagrh_pocketsjacket1_greenstain jacket1_internalstainjacket1_stain2

“Police” version?  Label intact.  Pile liner is like a vest.  Rhodesian production (source: http://www.newrhodesian.ca/viewtopic.php?f=46&t=1484#p13915).

Sample 3: 

1a_front 1b_front 2_backslantpoint_chestslantpoint_tag

Same reddish brown as Sample 2.  Exactly the same cut as later 2nd Pattern jacket.  Possibly Rhodesian produced like Sample 2 due to long, horizontal tag and velcro at cuffs.

Sample 4:

southafricanpolicecamohats

Fabric is twill, different from poplin of jackets.

Color Balanced Swatches:

From sample 1:

sap-1st-saversion

From sample 2:

sap-1st-rhversion

Brown on South African version (sample 1) is much less red than brown on the Rhodesian version (sample 2).

From Sample 4:

southafricanpolice1stpattern