It could be, but if they are vise clamp patterns, they seem having exactly the same kind of shape of some designs of the coin.
On letter O the shape (in relief) looks like a point like the ones of ribbon or arrows, on the letter C you see some shape like the leaves of the oak wreath (in relief) , and on letter N something regular like some letter body (in incuse).
And the letters are not smashed as if you press them with an object under strong pressure, they are perfectly outlined with just the new shape in relief. Finally, there are no signs of any type on obverse.
On letter O the shape (in relief) looks like a point like the ones of ribbon or arrows, on the letter C you see some shape like the leaves of the oak wreath (in relief) , and on letter N something regular like some letter body (in incuse).
And the letters are not smashed as if you press them with an object under strong pressure, they are perfectly outlined with just the new shape in relief. Finally, there are no signs of any type on obverse.

























