These were issued after the majority of the dual-currency issue was exhausted. It is not yet known when these began to be issued. The last day of issue was 17 April 1980. The postal orders issued between 12 December 1979 and 17 April 1980 are quite sought after by postal ordercollectors.
Remainder issues
These began to be issued on 18 April 1980. They were issued as late as 1982, including some of the dual-currency issue. It is not yet known when these were exhausted and replaced by the postal orders of Zimbabwe.