Mar del Plata (Argentina) — August 20, 1965 (2300)
Mar del Plata (Argentina), Mr. and Mrs, Yacobi heard a loud humming sound and saw a glowing, oval, flashing object land 200 m away. Figures moved around it, as if examining the craft, which took off again. (Humanoids 42)
Source: Passport to Magonia
Case: 685