Only the two masters have been drawn by hand: Hairline and Black, in both the Roman and the Italic. Everything in between has been interpolated. The goal to make the whole typeface interpolatable from one extreme to the other heavily influenced the design.
The Italic, designed by Nina Botthof, adds some tenderness to the condensed and rigid design. The exaggerated end strokes in the lowercase letters create a very distinctive rhythm in the Italic styles while staying true to the original design.