Details:

James D. Watson signed Doctors Mayo First Day Cover honoring Drs. Charles Horace Mayo and William James Mayo, founders of the Mayo Clinic, featuring a 5-cent Doctors Mayo stamp canceled in Rochester, Minnesota, on September 11, 1964, the first day of issue. Watson has signed the cover prominently in black ink.

Fine condition.

James D. Watson (1928– ) is an American molecular biologist, geneticist, and Nobel Prize recipient best known for co-discovering the double-helix structure of DNA with Francis Crick in 1953, work that fundamentally transformed modern biology and medicine. Watson, Crick, and Maurice Wilkins were awarded the 1962 Nobel Prize in Physiology or Medicine for their discoveries concerning the molecular structure of nucleic acids. His scientific achievements remain among the most important advances in twentieth-century science, although his later public career was marked by controversial statements that drew widespread criticism.

Authentication:
Includes a full letter of authenticity from JG Autographs, Inc.

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Reference sku: 11699 1417665-1