~ Soll es dir gelingen ~
It seems to be a knight's responsibility to consider all possibilities before acting. The transfer and painted stein is probably by Marzi & Remy and marked "1166" in black ink, ca. 1900.
Soll es dir gelingen,
schau selbst nach allen Dingen.
In order for you to succeed,
you have to look at (do) everything by yourself.
Translation: Roy De Selms
Photo credit: Unknown