Sourced production or model lifecycle range used by the main catalog timeline.
De CézacBallot-Engined Model
First and larger De Cézac family. Standard references explicitly describe one model with a choice of two Ballot four-cylinder engines, so the capacities remain powertrain variants rather than separate models. De Cézac fabricated chassis, gearbox, shafts and gears in Périgueux and bought in engines; coachwork was customized to order. A 1924 Chausson advertisement documents radiator supply, but dimensions, performance, prices and serials remain unknown.
Dates with their meaning intact
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.
No model allocation or complete marque ledger survives; archival oral testimony recalls approximately two cars per month overall.