| Heading and notes: | Form E.T. No. 2a. Combined form and envelope design. Five distinct sections. Heading is URGENT TELEGRAM. | 
| Message area: | Blank. | 
| Reverse side: | Blank. | 
| Colours (text & form): | Black on pink to salmon (various shades). | 
| Size of form overall: | 1194 × 201 mm (excluding flaps). | 
|  Printed in February 1917. | AE-DU-1A. Bridgetown to Perth Top section only shown. Characteristics: 
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|  Printed in April 1918. | AE-DU-1B. Cowra to Windsor (3 August 1920). Characteristics: 
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|  Printed in April 1918. | AE-DU-1B. Launceston to Storey Creek (10 June 1924). Top section only shown. Characteristics: 
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|  Printed in July1919. | AE-DU-1C. Stock Exchange, Melbourne to Maryborough (14 October 1922). Characteristics: 
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|  | AE-DU-1C (folded). The above delivery form folded showing the address on the reverse side and the flaps used to seal the telegram. | 
Details of use and rarity.
| Form sub-number | Schedule number | Earliest recorded date | Rarity rating | 
| DU-1A | B.774/2.17.--C.1823. | 21 December 1917 at CETO Sydney. | R | 
| B.774/2.17.--C.9910. | R | ||
| DU-1B | B.774/4.18 --C.4697. | 10 July 1920 at Oatlands, Tasmania. | RR | 
| DU-1C | B.1024/7.19--C.2252. | 18 January 1921 at Windsor. | R |