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Berna / Model record
BernaE4 NOP
ProductionUnknown
Recorded originSwitzerland
ClassTruck chassis
Documented E4 subtype; NOP suffix is retained exactly. Accessible sources preserve no defensible production years or technical table.
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: production chronology, attributed imagery. Fields we cannot source stay empty rather than guessed.