[petesergeant]

Those are the EU plate letters for each fwiw

[rad_gruchalski]

Not exactly. Only D and A. Switzerland is not in the EU (it's in the EEA but not EU) and doesn't have number plates following the EU design.

https://en.wikipedia.org/wiki/Vehicle_registration_plates_of...

[petesergeant]

OK fine, it’s the international plate code for Switzerland: https://en.m.wikipedia.org/wiki/International_vehicle_regist...