The Imperial Economic Conference took place in Ottawa during July and August, 1932. Representatives attended from various parts of the British Commonwealth. The purpose of the delegates was to discuss and adjust questions of vital importance not only to the people of Canada and to those of the Empire generally, but also to the world at large. Canada commemorated the occasion under its short title, Ottawa Conference, by the issuance of four special postage stamps, on 12th July, 1932. The series included a surcharge of the 5-cent brown Airmail stamps of the 1930 issue.
Medallion profile portrait of His Majesty King George V, from a photograph of a bas-relief by Sir Bertram Mackennal, R.A., Sculptor to the King.