| Heading and notes: | No form number. ELECTRIC TELEGRAPH ... WESTERN AUSTRALIA spanning the central Crest. | 
| Message area: | 8 lines of 5 boxes for message numbered at right to 40. | 
| Reverse side: | 14 lines of 5 boxes - numbered at right to 110. | 
| Colours (text & form): | Light red on pale yellow. | 
| Size of form overall: | 161 × 216 mm. | 
|  | WC-DO-3.  Geraldton to Perth(?) Characteristics: 
 | 
Details of use and rarity.
| Form sub-number | Schedule number | Earliest recorded date | Rarity rating | 
| DO-3 | None | 17 June 1881 at Perth. | NC |