Hello kommodore_ss,
It would help to have actual pictures of your coin.
I don't know about the 4 Mon coins, but with the 1 Mon coins some of them are magnetic. Although they are mostly copper, based on what area of Japan the metal came from, they may have enough iron to be magnetic. I presume this is true for 4 Mon coins as well.
I have looked at the numista page and see they only list two varieties of 4 Mon coins. If you look in specialist catalogs like Hartill or the JNDA they list many more varieties. Therefore I bet your coin is not an exact match for the coin on numista and probably another variety.
Does your coin have a mintmark on the reverse? The one you linked to does.
Again, it would be helpful to have pictures of your coin.
-wheatiefan
It would help to have actual pictures of your coin.
I don't know about the 4 Mon coins, but with the 1 Mon coins some of them are magnetic. Although they are mostly copper, based on what area of Japan the metal came from, they may have enough iron to be magnetic. I presume this is true for 4 Mon coins as well.
I have looked at the numista page and see they only list two varieties of 4 Mon coins. If you look in specialist catalogs like Hartill or the JNDA they list many more varieties. Therefore I bet your coin is not an exact match for the coin on numista and probably another variety.
Does your coin have a mintmark on the reverse? The one you linked to does.
Again, it would be helpful to have pictures of your coin.
-wheatiefan

























