Production chronology1965–1966
Sourced production or model lifecycle range used by the main catalog timeline.
curated ↗2 years
← Berna
Berna / Model record
Berna4 GTP
Production1965–1966
Recorded originSwitzerland
ClassArticulated high-floor trolleybus
Articulated trolleybus chassis supplied to Geneva, Winterthur and Schaffhausen with bodies/equipment from firms such as SWS, SWP, SAAS, BBC and MFO. Part of Berna's 131-unit 1940–67 trolleybus output.
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.