Nebiolo absorbed several other foundries after 1889 and for some time the company was called Società Augusta, but it reverted to Nebiolo&Co in 1917. See Luc Devroye's Nebiolo page http://luc.devroye.org/fonts-36780.html. So this font could have been in a Nebilo catalog. The Klingspor musueum has listed many, & perhaps all, of the types ever made by Nebiolo http://www.klingspor-museum.de/KlingsporKuenstler/Schriftgiessereien/Neb... but does not show any images. So the name could perhaps be on this list.
Probably not digitized.
Some substitutes. Cognac http://www.myfonts.com/fonts/solotype/cognac/ Secession http://www.myfonts.com/fonts/hihretrofonts/secession/ Künstler Grotesk ML http://www.myfonts.com/fonts/hihretrofonts/kunstler-grotesk/ Auchentaller http://www.myfonts.com/fonts/hihretrofonts/auchentaller/ Sparticus http://www.myfonts.com/fonts/solotype/sparticus/ Roberta http://www.myfonts.com/fonts/profonts/roberta/ Rotorua http://www.myfonts.com/fonts/hanoded/rotorua/ Vienna Workshop http://www.myfonts.com/fonts/hanoded/vienna-workshop/ Himmelblau http://www.myfonts.com/fonts/hanoded/himmelblau/ P22 Arts and Crafts http://www.myfonts.com/fonts/p22/arts-and-crafts/ Kolo LP http://www.myfonts.com/fonts/letterperfect/kolo/
Don

A few more: Quaint Gothic SG http://www.myfonts.com/fonts/spiecegraphics/quaint-gothic-sg/ Aka Desdemona http://www.will-harris.com/store-h/desdemona.html Semiramis http://www.will-harris.com/store-h/desdemona.html Syracuse http://www.myfonts.com/fonts/arroyostyle/syracuse/ Vienna Workshop http://www.myfonts.com/fonts/hanoded/vienna-workshop/ ITC Stocklet http://www.myfonts.com/fonts/itc/stoclet-light/ and last but not least Epitaph
http://www.myfonts.com/fonts/fontbureau/epitaph/
Don

As always Don, thank you! And thanks for the links also. They are a great help :)

Stefan

One more to throw into the hat: Scriptorium's Beaumains (which I know as Livonia).