Letterproef. Enschedé en Zonen, Joh. Trinite 1, 2, 3. 1982 : A bookface in three variations designed in association with the firm of Joh. Enschede for Autologic's photosetters. ASA types, June 1982, number 2. Tekst in het Engels, Frans en Duits. Design en lay-out: Bram de Does.