Postino,
I just went and checked it, it is still there.
I did notice that the safety and the serrations are darker than the rest of the slide to the extend that it covered the 'S' and 'F' colors. It probably was lightly polished.
And.....
I noticed in the description that it mentioned the 'import marking' above the trigger, ....
This was the very question I asked for advice....duhhh.
Manuel