Cachet includes two depictions of Lord Rutherford and text, "World Famous Scientist Pioneering in Radioactivity and Nuclear Physics." The research program in the field of radioactivity undertaken by Rutherford at…
Cachet depicts Frederick Banting and Charles Best with a description of how they isolated and refined insulin as an independent hormone.
- Artist Ray Webber
- Contributor British American Bank Note Company
- Subject Postage stamps, Best, Charles Herbert, 1899-1978, University of Toronto, Commemorative postage stamps, Banting, Frederick Grant, Sir, 1891-1941, Science on postage stamps, Canada, Nobel Prize winners, Medical scientists, Cachets (Philately), First day covers (Philately), Physicians