[urbanspaceman]

Johannes Wundes appears to have been the principle user of this particular rendering of the Passau Wolf.
He put this image on blades he supplied to Passau merchants who were selling to Passau mercenaries of Arch-Duke Leopold V. (see image)
The Munsten family also used this same style of wolf, so these blades may have come from Solingen or might have been made by Peter Munsten (the younger) while working at Hounslow.
Olligh, of Shotley Bridge fame, did not use the Passau Wolf as has been assumed on many occasions. Those blades marked SHOTLE(Y) BRIDG(E) with a Passau Wolf were smuggled-in by Hermann Mohll at the start of the enterprise. Once Olligh attained independence he went back to using the Bushy Tailed Fox.
It is probably impossible to determine where blades came from purely by the presence of the wolf.
However, I think Norman's sword-blade came with the wolf and the date was added when it was re-hilted. The presence of the wolf is what made the blade desirable and worthy of a re-hilting.