Zone A
| Date | Letters | Air Letters | Post Cards | 2nd Class |
|---|---|---|---|---|
| Aug 1979 | 22n per 10g |
Zone B
| Date | Letters | Air Letters | Post Cards | 2nd Class |
|---|---|---|---|---|
| Aug 1979 | 28n per 10g |
Zone C
| Date | Letters | Air Letters | Post Cards | 2nd Class |
|---|---|---|---|---|
| Aug 1979 | 32n per 10g |
Zone D
| Date | Letters | Air Letters | Post Cards | 2nd Class |
|---|---|---|---|---|
| Aug 1979 | 42n per 10g |