Production chronology1950–1958
Sourced production or model lifecycle range used by the main catalog timeline.
curated ↗9 years
← Berna
Berna / Model record
Berna4UM
Production1950–1958
Recorded originSwitzerland
ClassHeavy all-wheel-drive military truck
Heavier companion to the 2UM joint Swiss military program.
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.