I am overwhelmed by the quick response.
The mistery has been solved...

REGALITY!!!
KINGSHIP!
So it IS something cultural with a political hint lol!
I am absolutely relieved!
Never I would have thought! A distinctive of royal dignity!
That's what it is about! Clear as glass now: If you mint coins, you are/have to be a king, ergo
the apposite symbol turns round discs of precious metal into legal tender/ accepted currency!
Genial! From now on, it's all YOURcoins! (Insert a glint of criminal energy here)

BIG SMILE!

Thank you very much

Valete, patri conscripti!


Can I give a balloon to the EB community?

(I hope so)