Help to ID, Aachen coin [επιλυμένο]

Hello experts, 

Trying to find this one with no sucess

Eagle with numbers 8 - 1 

reverse looks like

REICHS
STA ACH
IIII

Looks like Aachen have a broad information about coins but I can't find about this one.

Any comment will be appreciated!

Diameter: 20mm

Weight: 1.87g

Thank you

Geison

4 heller:  N#25283

https://www.aachen-muenzen.com/st%C3%A4dtische-pr%C3%A4gungen/4-heller/1670-1691/

Thank you very much!