A 18-33 500 - 559 ( Regular passenger coach)

Also known as: Unified cars I (Voitures unifiées I - VU I / Einheitswagen I - EW I), Unified type I (Type unifié I / Einheitstyp I)

UIC / EVN registration: 50 85 18-33

Registration country: Switzerland

Railway companies: SBB CFF FFS - Swiss Federal Railways