I found this type specimen on the statue of Jan Hus in Prague's Old Town Square. The statue was designed in 1903 by Ladislav Saloun, and its writing is perhaps the cutest little Nouveau fonts I've ever seen. Filling in the blanks, I realized the need for a standard lower case because the caps are so wild. The result is a very type-able and dynamic Nouveau. I encourage you to mix up your upper and lower cases for curious results.