Hello Aidan,
the 2 links don't give me more information as I already have.
I found for expl this coin N#20686 for Germany › German States › Saxony (Albertinian Line), Kingdom of • Mark (1872-1917)
The coin is linked to the “Deutsches Reich” (rev. side). All these coins are generally linked to the king, etc in this state. You have generally his head on the obv side.
My point of view is as I said :
- the “Ruling authority” for the Notgeld is not the king, etc. of the state but the city administration or Wilhelm II.
- the spliting of notgeld by state>city was made based on the administration organisation of the ‘Deutschen Reich’. The Notgeld was tolerated by ‘Berlin’ and forbidden by ‘Berlin’ (RGBl. I, 693) (and not the kings of each state).
- adding the city admin. is a lot of work ; adding the kings reflects the local representative but not the ‘ruling authorities’. The ruling authorities seems for me Wilhelm II.
Perhaps @Silberschatz as historian could give his point of vue.
Markus