Carl Roth
Würzburg. Bavaria.
Kunstler & Studenten-Utensilien-Fabrik. / Artist & Student supplies.
Known dates: 1901 / 1920
Purchased stein bodies from : Villeroy & Boch - Mettlach
Reference
Base of featured stein with impressed #1526 for Villeroy & Boch - Mettlach, dated 1901, also hand written ink signature of artist. 
Villeroy & Boch - Mettlach 1/2 litre student stein. 
Underside of lid of student stein, dated winter semester 1903. 
Fliegende Blätter, Nr. 3912 München, den 16. Juli 1920 