American medical practitioner (1865-1939) who helped found the Mayo Clinic with his brother, William James Mayo, and several others. Vintage matte-finish 7 x 9.75 photo of Mayo in a suit and tie, signed in the lower border in fountain pen, "C. H. Mayo." Reverse is stamp-dated September 27, 1932. In fine condition, with a bit of brushing to the signature.
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