50 Francs / Franken / Franchi

The Banque Commerciale Neuchâteloise was one of some thirty cantonal and regional note-issuing banks operating in Switzerland before the Schweizerische Nationalbank absorbed the right of issue in 1907. That concentration of private issuance meant notes circulated primarily within tight regional boundaries — a 50-franc instrument from Neuchâtel would rarely have been accepted at face value in Zurich or Geneva without a discount.

The trilingual denomination line — Francs, Franken, Franchi — reflects the Swiss constitutional requirement that official instruments acknowledge all three national languages, not any particular ambition of the issuing bank. The series ran across nearly a quarter century, which typically means multiple printing states and signature combinations exist across surviving examples.