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- Bernardino Rivadavia, president (1858, 1935, 1945)
- Julio A. Roca, president (1888, 1933, 1941, 1964)
- Dardo Rocha (1933)
- Franklin Delano Roosevelt, US president (1946)
Read more about this topic: List Of People On Stamps Of Argentina
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Read more about this topic: List Of People On Stamps Of Argentina