silviosi..First off, welcome to the forum.
but guys I thing we do not have begin paranoia with some small differences in printing.
Not paranoia, realize this that because of these posts, I have found a new variety with help from members of this great forum..That is one of the reasons I began the post.
Also I realized lots of people think a scratch, dot, blur is something to post..So I got smart and made this post to try and stop 5, 10, 50 etc people from creating many more posts to clutter up the forum and make remembering where we saw it very difficult.
when we look to the errors and oddities we have to look also of the production of the stamps. Like the paper, ink, methods, volume, etc
We all ready do that my friend..All stamp collectors do that..