~ Der alten deutschen Redlichkeit ~
Note that the archaic "y" in "sey" becomes "i" in modern German "sei" and translates to "be" or "would be". The faience stein is ca. 1800.
Der alten deutschen Redlichkeit, sey dieser volle Krug geweyht.	The old German tradition would have been to bless this full stein.

Translation: Roy De Selms Photo credit: Unknown