Adrian-Frutiger

Adrian Frutiger, OCR-B, Comparison method – final artwork and difference between B and 8 in colour, European Computer, Manufacturers Association, 1963-1965; in Adrian Frutiger – Typefaces. The Complete Works, by Heidrun Osterer and Philipp Stamm, Edited by Schweizerische Stiftung Schrift und Typographie, Birkhäuser, Basel, 2014, p. 181