Four rare army Field Post Offices 1 (x2), 2 and 3 from the 1960s...

4 very rare covers with army Field Post Offices from the 1960's .....

Hasso Reissner confirms - page 185 of the Special & Commemorative Postmarks, Cachets & Covers of South Africa:

No 1 Field Post Office was opened on -

2nd August 1968 for Exercise Sibasa at Elandsfontein, closed on 27th August - this cover dated first date of opening

13th September 1969 as a static unit at Port Alfred Airfield, closing on 10th October 1969 - this cover dated 15th September - short period shows how rare this cachet / cover is!

No 2 Field Post Office was opened on -

14th August 1968 for Exercise Sibasa at Elandsfontein, closed on 27th August - this cover dated first date of opening

No 3 Field Post Office was opened on -

14th August 1968 for Exercise Sibasa at Elandsfontein, closed on 27th August - this cover dated first date of opening

Taken from a specialised Union / Early Republic cover & Cachet collection - may never appear again on BoB!