The original series spans Koch-Antiqua (1922), Koch-Antiqua Kursiv (italic, 1923), Koch-Antiqua grob (semibold, 1924), Koch-Kursiv grob (1929) and Koch-Antiqua fett (heavy, 1926). [Reichardt] It was sold abroad as Locarno and in the US as Eve or Eve Antiqua.
There are various digital interpretations, but none of them covers the complete series. See Paul Shaw’s article Overlooked Typefaces for Print magazine.
