~ Erst mach dein Sach ~
A good way to conduct business on this 1/4 L. blue/gray stoneware stein ca. 1900.
Erst mach dein Sach,
dann trink und lach.
First make (conduct) your business,
then drink and laugh.

The same verse can be found on this 1.0L Mettlach tapestry stein, mold# 1643.
Translation: Les Hopper compilation
Photo credit: Unknown