| Heading and notes: | Form number is E.T. No. 1. Standardised heading with two vertical lines at left for NOTE. |
| Message area: | Very faint lines extending to the sides of the form except for DO-3B. |
| Reverse side: | Blank. |
| Colours (text & form): | Light blue on cream. |
| Size of form overall: | 172 × 215 mm. |
| Size of datestamp box: | 29 × 33 mm. |
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TI-DO-3A.
Launceston to Stanley. Characteristics:
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TI-DO-3B.
Launceston to Burnie Characteristics:
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TI-DO-3C.
Hobart to Launceston Characteristics:
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TI-DO-3D.
Koonya to Hobart Characteristics:
Has a very scarce date stamp for Hobart (diameter 30 mm). |
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TI-DO-3E.
Hobart to Hamilton. Characteristics:
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Details of use and rarity.
| Form sub-number |
Schedule number | Earliest recorded date | Rarity rating |
| DO-3A | B24042 ... 16 | 24 April 1909 at Deloraine. | R |
| B24334 ... 16 | 20 March 1909 at Longford. | R | |
| B25209 ...16 | 21 April 1909 at Stanley. | R | |
| B26328 ... 16 | 13 November 1909 at Deloraine. | R | |
| B27461 ... 16 | 30 September 1909 at Oatlands. | R | |
| DO-3B | None | 6 January 1911 at Oatlands. | NC |
| B27461 ... 16 | 18 May 1910 at Perth. | R | |
| B33399...16. |
23 January 1911 at Premaydena. | C | |
| B37009...16 | 25 June 1911 at Oatlands. | NC | |
| B39282...16 | 8 November 1911 at Deloraine. | C | |
| B41440 ...16 | 30 September 1912 at Oatlands. | NC | |
| B47301...16. | 6 April 1914 at Launceston. | C | |
| DO-3C | B68880...16 | 13 June 1916 at Launceston. | R |
| DO-3D | B49726...16 | 21 June 1913 at Hobart. | NC |
| B51475...16. | 26 September 1913 at Lovett. | C | |
| B54867...16. | 6 October 1914 at Swansea. | C | |
| B56579...16. | 12 February 1915 at Stanley. | NC | |
| B58800 ... 16 | 20 July 1915 at Lilydale. | R | |
| DO-3E | B69742...16. | 9 September 1916 at Hamilton. | C |