Police badge?

[BTR]

Good day to all.
Police badge?
What is the dedicated to, what is written?

[ghp95134]

Undated but is probably post-1945.

警察優良章
Police Excellence Award

横浜市公安委員会
Yokohama City Public Safety Commission


Lid:
横浜市警察優良章
Yokohama City Police Excellence Award

— Guy

[BTR]

Judging by the reverse, the metal of the badge, the box, the fabric and the fittings on it, I would still assume that it was made before 1945, but of course, without a specified date, this cannot be confirmed.

[BTR]

Thanks for the help.