Production chronology1921–1922
Sourced production or model lifecycle range used by the main catalog timeline.
curated ↗2 years
Four-cylinder development documented in 1921 specifications and period advertising. Later 1923 catalog references overlap the successor Mauve phase, which is not silently treated as continued Elfe production.
Sourced production or model lifecycle range used by the main catalog timeline.
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.