Public domain
PAN AMERICAN SCIENTIFIC CONGRESS. COSTA RICAN GROUP: EDUARDO J. PINTO, CHAIRMAN; FELIPE GONZALES; MISS DE LA GUARDIA; DR. OREAMUNO
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Credit linePAN AMERICAN SCIENTIFIC CONGRESS. COSTA RICAN GROUP: EDUARDO J. PINTO, CHAIRMAN; FELIPE GONZALES; MISS DE LA GUARDIA; DR. OREAMUNO. 1915-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.