Artist's signature on underside of lid insert on glass student stein, dated Christmas 1894. 
Lid insert on unmarked glass student stein, dated 1930. "Nibelungia sei's Panier" "Vaterland, Freundschaft, Ehre" 
Artist's signature on underside of lid insert on glass student stein, dated summer 1919. 
Artist's signature on underside of featured lid insert on glass student stein, dated Christmas 1930.
Artist's signature on underside of lid insert on glass student stein, dated Summer 1929. 