Unknown coin . German ??

[pinpoint]

Friendly ask for help to determine this unknown coin .
Coin was found in North-East Friesland in Holland
Unfortunately in a bad condition .
Diam. 18 mm / Silver
Front : MONETA ????
Rev ; ( cross) X CHRISTI NOST ( could be :CRVX CHRISTI NOST SAL)
Maybe Hamburg is an option ?
Any info is welcome

Greetz from The Netherlands , Pinpoint

[Gerhard Schön]

Maybe Hamburg is an option?

Both the key and the legend point to Bremen, not Hamburg.
Greetings,
gs

[pinpoint]

Hello Gerhard ,

Thankx for your exellent help !
Do you know the denomination of this coin ( 1/2 Grote ?? ) ,
Bremen Stadt ?? , Date of minting ?? , Ref. nr ??

Greetz , Pinpoint