General characteristics:
| Heading and notes: | No form number. Heading is Postmaster-General's Department New South Wales with the Crest between. |
| Message area: | Written message with blanks to be completed.. |
| Reverse side: | Blank. |
| Colours (text & form): | Black on various colours. |
| Size of form overall: | 80 × 124 mm (except for AD-1C) |
Distinctive characteristics of the form:
Details of use and rarity.
| Form sub-number |
Schedule number | Earliest recorded date | Rarity rating |
| AD-1A | St 1673 | 15 August 1910. | RRRR |
| AD-1B | None | 28 July 1920 at Wagga Wagga. | RRRR |
| AD-1C | St 2960 | 28 August 1920 at Wagga Wagga. | RRRR |