I have been trying to correct the Numista cataloque concerning this coin. But everytime I am rejected or it comes out wrongly.
I enclose a picture from siegs cataloque which is an acknowledged source.
As you can see there are 3 kinds of coins commemorating Crownprince 18th Birthday.
One is a silver coin with mintage 23,649. One is of copper-nickel with mintage 1,090,351 and this coin also is in a proof version with a mintage of 2,000.
Best Regards
boogi
