it takes a certain type of person to even read this posting
Even though I am a ufologist this is not an object that I know a lot about. For all I know it may be a fake? But by the looks of it. . . . Accidents like this cannot be fakes. At least they usually are not fakes. The Elvis tortilla probably was a fake . . . etched by some one with a wood burner tool? This piece is nothing like that.
I asked Google to find a similar image. So, for fans of such things, the Google algorithms found proof that aliens were here in 6000 B.C. (when people rode dinosaurs, right?)
Look carefully: there are aliens, flying saucers and poker holes in an L shape. (Not to worry: I still disagree with Colin Berry et al and think the third drawing in the Hungarian Pray Manuscript is based on the shroud).