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  Postage stamps

  First Day Cover honoring Ernest Rutherford

  • 1971

  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…

  • Artist Ray Webber
  • Contributor British American Bank Note Company
  • Subject Postage stamps, Postmarks, Commemorative postage stamps, Rutherford, Ernest, 1871-1937, Nuclear physics, Science on postage stamps, Canada, Nobel Prize winners, Cachets (Philately), First day covers (Philately), Physicists
• 
  Postage stamps

  First Day Cover commemorating the 50th anniversary of the discovery of insulin

  • 1971

  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