Havel is an updated interpretation of a Czech type design from the 1930s. It is powerful and very condensed. At a quick glance you might find kinship with other condensed typefaces of the same period, like Spire (Sol Hess, 1937), Onyx (Gerry Powell for ATF, 1937) or Quirinus Bold (Alessandro Butti, 1939). But Havel has its very own look, rooted in the rapidly disappearing "Eastern European Type", a typographical tradition where poster and packaging design were the highlights. Torbjörn Olsson has revived this classical Czech beauty, and the Open Type version, Havel Pro, can also be used for Czech, Hungarian, Polish, Estonian, Latvian and Lithuanian.

A page from the 1931 Vitrolite catalog showing illustrations of store fronts and building exteriors utilizing the material provided a classically Art Deco type example. The business name “Sylvin” did not offer many characters to work with, so completion of the digital type design was simply left to imagination. The end result is Structural Glass JNL, which is available in both regular and oblique versions According to Wikipedia: “Pigmented structural glass, also known generically as structural glass and as vitreous marble, and marketed under the names Carrara glass, Sani Onyx, and Vitrolite, among others, is a high-strength, colored glass. Developed in the United States in 1900, it was widely used around the world in the first half of the 20th century in Art Deco and Streamline Moderne buildings. It also found use as a material for signs, tables, and areas requiring a hygienic surface. Over time, the trademarked name “vitrolite” became a generic term for the glass.”