While designing Weiss Rundgotisch, Weiss was inspired by Renaissance types cut by the Augsberg printer Erhard Ratdolt. Ratdolt had spent some time in Venice, which is most likely where he became familiar with round gothic letters. This sort of letterform was never as popular in Germany as Fraktur or Gotisch may have been, but round gothic types were used there for centuries to represent arts and craft feelings, as well as old-fashioned handwork.
For a blackletter typeface, Weiss Rundgotisch is very similar to normal serif and sans serif designs, especially its uppercase letters, which seem to have some uncial influence in them as well. Therefore, Weiss Rundgotisch is more legible for contemporary readers, making this an excellent choice for anyone looking to set text, logos, or headlines with in blackletter.
Weiss Rundgotisch was apparently quite a difficult typeface to design, even for a master designer like Weiss. He began work on the face in 1915; Weiss Rundgotisch's development took over 20 years to complete."