German steam tug Tauer 1 1873-

A so-called tauer schlepper=rope tug. Owned by Centr. Actien Gesellschaft für Tauerei&Schlepp Sch., Ruhrort, Germany. Iron built in 1873. Horsepower 50 hp. Crew numbered 11 men.

Source
Rheinschiffs-Register. Frankfurt am Main, Germany 1879.