I just got another of these coins in a trade, because I still miss one them (the “fine”, the “bold” I thought, I had!
I got a “fine” date, but I wonder, if there really are “bold” and “fine”? As you can see, I now believe it's a matter of grade (use of the coins)

Here is, what is documented in numista. Tee dates are not even the same size.

What do you think? Thanks for taking your time to think about this.