| Heading and notes: | Form E.T. No. 1. COMMONWEALTH OF AUSTRALIA above TELEGRAM. |
| Message area: | Blank. |
| Reverse side: | Blank. |
| Colours (text & form): | Blue on cream. |
| Size of form overall: | 145 × 210 mm. |
| Size of datestamp box: | 31.5 × 35 mm. |
This form is very unusual and difficult to classify:
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AI-DO-1.
Hobart to Melbourne Characteristics:
|
Details of use and rarity.
| Form sub-number |
Schedule number | Earliest recorded date | Rarity rating |
| DO-1 | C. 12608 | 31 August 1906 at Telegraph Branch, Melbourne. | RRR |