http://cjtype.com/dunbar/

The idea for Dunbar came up in a conversation with Indra Kupferschmid in early 2015 about iconic sans serifs and the original metal version of Erbar-Grotesk. And in a way, it stayed a conversation, with the typeface. Dunbar is not a strict revival of Erbar. It is inspired by its design but just as much by its concept of variations and alternates in form and proportion that seemed just made for today’s type technology and easy implementation in OpenType. Jakob Erbar was ahead of his time devising a desire for, and offering different sets and alternate glyphs that can very drastically change the character of the whole typeface.