Christos Kakalos (Greek guide (1879 - 1976)) made with Daniel Baud-Bovy (Swiss writer and painter 1870-1958) and Frédéric Boissonnas (Swiss Fotographer 1858-1946) the first ascent of Mt. Olympus 2'917 m (Greece).
Greece 2013, Christos Kakalos (1879 - 1976).
The miniaturesheet was issued in the series "100th Anniversary of the First Ascent Mt. Olympus".