Romansh language registry in Romansh. The Swiss National Bank first planned to include Romansh on its bills in 1956, when a new series was introduced. Due to disputes within the Lia Rumantscha over whether the bills were to feature the Sursilvan version ""Banca nazionala svizra"" or the Vallader version ""Banca naziunala svizzra"", the bills eventually featured the Italian version twice, alongside French and German. When new bills were again introduced in 1976/77, a Romansh version was added by finding a compromise between the two largest varieties Sursilvan and Vallader, which read ""Banca naziunala svizra"". The numbers on the bills were printed in
Romansh language Sursilvan in the west and the dialects of the Engadine in the east, with Sutsilvan and Surmiran forming a transition zone between them. The Engadinese varieties "Putèr" and "Vallader" are often referred to as one specific variety known as "Ladin" (rm. ), which is not to be confused with the closely related language in Italy's Dolomite mountains also known as Ladin. Sutsilvan and Surmiran are sometimes grouped together as Central Romansh (rm. "Grischun central"), and then grouped together with Sursilvan as "Rhenish Romansh" (in German, "Rheinischromanisch"). One feature that separates the Rhenish varieties from Ladin is the retention of the