[2] Elements related to the geometric model include the "single-storey" letter 'a', based on a circle.

Other elements are less purely geometric, and more based on classic serif typefaces, for example the 't' with a curl to bottom right and an angled stroke terminal, unlike Futura's 't' composed of two simple cross-strokes.

[2] Starting from Zapf's original designs, URW created an extremely large range of weights and widths by computerised interpolation and extrapolation.

[5][2] Florian Hardwig's obituary for Zapf described it as "not a typical design for him, utterly uncalligraphic...but it functioned wonderfully, of course.

[10] Zapf designed a serif companion font at the same time as part of the same (ultimately abandoned) redesign project, URW Antiqua.