~ Es lebe die Musik und Sangeskunst ~
The verse is self explanatory on this beaker marked with the Mettlach logo, form number 2327, decor number 1024 and date 1904. This might also be stated "Long live the artistry of music and song.".
Es lebe die Musik und Sangeskunst. Long live music and artistry of song.
Translation: Roy De Selms
Photo credit: Unknown