confederatio helvetia = switzerland, other name, eidgenossenschaft.
on ouer swiss cars we have an ch sticker so the police etc can see we are swiss... but older cars get exportet and as i was in russia, moskau, they tell me that you can buy swiss stickers there too and i ask for what reason? to fake an old car be coming from swiss where the condition is usually way better than an russian one LOL.
that stamps are nice, get some in swiss too, also i smiled as i got an letter from ibach with the same stamps on them...