1:2:3 Dürer / Typeface / 2006 / In the 1600th century Albrecht Dürer made extensive research on the form and construction of letters. Starting from one of his sketches of how a fraktur is constructed, 1:2:3 completed and digitalized the all caps font 1:2:3 Dürer. The typeface was later used as the headline font for a series of posters for the rock/electronica club Spark.