The Lead Masks of Vintém Hill

Two electronics technicians found dead on a Brazilian hillside in 1966 wearing lead masks, with a cryptic note and no clear cause of death.

Locations

• Vintém Hill, Niterói, Brazil — where the bodies were found
• Campos dos Goytacazes, Brazil — home city of both men

Timeline

• August 20, 1966 — Manoel Pereira da Cruz and Miguel José Viana leave Campos dos Goytacazes.
• August 20, 1966 — Bodies discovered on Vintém Hill, Niterói. Both wearing lead masks, formal suits, and waterproof coats. No signs of struggle.
• Note found — “16:30. Be at the specified place. 18:30. Ingest capsule after effect. Protect metals. Await signal.”

Evidence Trail

• Claim: Lead masks were homemade from sheet metal.
  • Source: Contemporary Brazilian police reports and newspaper coverage (O Globo, August 1966).
  • Note: Masks matched scraps later found in Viana’s workshop.
• Claim: Empty capsules were found nearby.
  • Source: Initial police inventory.
  • Note: Contents never fully identified; toxicology was incomplete.

Open questions

• What were the capsules supposed to contain?
• Why wear lead masks on an open hillside?
• Was the “signal” expected from the sky, or was the note a red herring?

Adjacent rabbit holes

• Other 1960s Brazilian UFO-related incidents
• Electronics technicians and fringe radio experiments of the period