Help with 800 German (?) marks

[AllSeasons]

I need some help with deciphering these marks. I vaguely remember seeing the first mark somewhere else, but I can't recall. I think this is German, but am not 100% sure, since the marks are kind of worn. I think I see the crescent moon and crown and 800 on the right. Any insight from the forum would be much appreciated.

I've included the image below. Thank you in advance, as always.

[Bahner]

Hello, the maker's mark is upside down: J. Kurz and Co. from Hanau, Germany. Regards, Bahner

[AllSeasons]

Great, thank you!