I recently saw a type face with bits missing and thought "Looks interesting, can I do something with this idea?". I used one of my older sans designs but soon discovered that I needed serifs to get logic to the gaps ;) So I started work on a good serif design to use as the base. Here is my interpretation of what I saw, it looks rather different from the one that inspired me.
An experiment with propellers. It seems to me like something four would make. Suggestions are welcome. Thanks.
02/08/17: Thanks to the new Kerning feature, a separate "r" is no longer required. Also made the rings a little rounder and fixed the rings on U and u.