Production chronology1940–1959
Sourced production or model lifecycle range used by the main catalog timeline.
curated ↗20 years
← Berna
Berna / Model record
Berna5U / 5UM
Production1940–1959
Recorded originSwitzerland
ClassHeavy truck
Heavy U chassis and documented UM derivative.
Chronology ledger
Dates with their meaning intact
Record depth — Documented
How this is measured → This record contains useful sourced evidence, but it does not yet meet the reference-ready standard. Still needed: attributed imagery. Fields we cannot source stay empty rather than guessed.