Source: commons.wikimedia.org
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 numbering: 50 63 30-33
Railway companies: BLS - Bern-Lötschberg-Simplon Railway
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