| Heading and notes: | Form number E.T. 45 (centered). PREFIX at left. Standard Interim period heading. |
| Message area: | One information line and seven message lines. |
| Reverse side: | Blank. |
| Colours (text & form): | Blue on light pink/orange. |
| Size of form overall: | 173 × 210 mm. |
| Size of datestamp box: | 36 × 32 mm. |
Details of use and rarity.
| Form sub-number |
Schedule number | Earliest recorded date | Rarity rating |
| DU-2A | None | 22 May 1909 at ETO Perth. | RRRR |
| DU-2B | None | 15 August 1911 at Southern Cross. | RRRR |
| DU-2C | B3604 / 08 | 4 March 1909 at Cue. | RRRR |