I'm wondering why they don't make coins with a hole in the center, like pen caps.
There's even an ISO standard about pens. Why not coins?
https://www.iso.org/standard/81889.html
(I have danish øre coins with holes around.)
I'm wondering why they don't make coins with a hole in the center, like pen caps.
There's even an ISO standard about pens. Why not coins?
https://www.iso.org/standard/81889.html