Another german publication...
http://deposit.ddb.de/cgi-bin/dokserv?i ... 697870.pdf
Hanelore Rose... Dissertation.
There is also the translation from the latin sentence:
Persona Germana. Sum figuli lusus russi persona Batavi. quae tu derides, haec timet ora puer.
"Germanische Maske.
Scherz eines töpfers bin ich, eines blonden Batavers Maske, du belachst mein Gesicht, aber dem Kind macht es Angst."
"Germanic Mask, joke of an potter i am, mask of a fair batavian, you laugh about my face, but the child makes it fear."
or seomething like that... the latin german is difficult to translate to english elegantly...