An advertisement that incorporates a testimonial letter, a photograph of the overland driving team and a painting of the Dunlop Rubber Mills flanked by the Australian flag ringed by a tyre and a relay torch. The caption includes: 'On the completion of our long journey to Darwin and back in the Bean Car we beg to testify to the wonderful services provided by Dunlop Cord Tyres.' The letter is headed 'Sydney, September 1st, 1924' and is signed by (indecipherable initials, possibly 'G' and 'L') Simpson; M. H. Ellis/ Leader and Francis Birtles. Birtles was famous for his travels, and Malcolm Ellis was a journalist for the Sydney Morning Herald who subsequently published a book on the journey.The letter lists the places visited on the 6314 mile r...