Hotel Gassner is a font based on the lettering on a poster for a Munich hotel, restaurant and cafe from 1906. It was a popular enough venue that a huge new hotel was built with the same name in the late 1900s.
The font includes a full upper case character set plus small caps and punctuation. It’s very characterstically Art Nouveau in the Jugendstil tradition.
There is no demo version of Sketchy, but you can ORDER the full version online for only $24.