From Wikipedia: The MacRobertson Trophy Air Race (also known as the London to Melbourne Air Race) took place in October 1934 as part of the Melbourne Centenary celebrations. The race was devised by the Lord Mayor of Melbourne, Sir Harold Gengoult Smith,[1] and the prize money of £15,000 was provided by Sir Macpherson Robertson, a wealthy Australian confectionery manufacturer, on the conditions that the race be named after his MacRobertson confectionery company, and that it was organised to be as safe as possible.[2] A further condition was that a gold medal be awarded to each pilot who completed the course within 16 daysClear glass sandwich plate, commemorating the Air Race from UK to Australia. Map of UK and Australia, aeroplanes, etched into glass.Front: VICTORIAN AND MELBOURNE CENTENARY 1934-1935 - etched from beneathuk australia air race, macrobertson air race, 1934, melbourne centenary