 The DIN Committee of Typefaces was headed by the Siemens engineer, Ludwig Goller (1884–1964), who also led the central standardization office at Siemens & Halske in Berlin, between 1920 and 1945.The design included not only the DIN "Engschrift," but also a DIN "Mittelschrift" ("medium[-width] face" – now very popular).A DIN "Breitschrift" ("extended face") design was also included, but it has never been widely used.