I have received a ladle which could be from Mainz. In fact I did not find a perfect fit with the marks in my reference books (Wyler's). Mainz town mark used to bear a wheel (or two) and at some period it also had a shield outline like the one on the ladle. But I did not find the right combination of the shielded outline, the wheel and the crown.
Does somebody know the exact period for the town mark on the ladle ? Or perhaps is it another city mark ?
Details on the maker would also be welcome in order to get a precise date for the ladle.
Here is the ladle:


and here are the hallmarks:

Thanks for your help.
Dinio