Brazilian Air Force (FAB)·Documentbrazil

Envelope 03

Release
Brazil 2026
Incident Date
Caso Araras 1955, Envelope 03 is dated 1955. It was disclosed 1955-08-14.
Location
Brazil
Agency
Brazilian Air Force (FAB)
Classification
Declassified

This is the third envelope in the Arquivo Nacional Aero-Espaço (AN-BSB-ARX) FAB declassification series covering the 1955 Araras (São Paulo) case. The two-page form, indexed XVI-CI-017, captures the witness profile of Mario Mathiesen, an agricultor with incomplete ginásio education and no television, who reported the object at 14:00 in 1955 over a fazenda de plantação adjacent to a rice field. Mathiesen described an opaque OANI the color of aluminum, about 30 meters in diameter, shaped like two plates mouth-to-mouth with a central dome. A witness drawing of the disc-and-dome silhouette accompanies the description.

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