On June 8-10 1963, ESO officials were the guests of AURA on their property and on June 10 gathered on Cerro El Morado, discussing ESO prospects in Chile. From left to right: H. Siedentopf, J.H. Oort, F.K. Edmondson, tour guide, A.B. Muller, O. Heckmann, Ch. Fehrenbach, unknown person, J. Stock and Sr Marchetti (architect).