What's Wrong With This Stamp?

Is this some sort of damage or just an ink splot or what do you think? It certainly appears unused and original gum (hinged). I'm breaking down a collection for resale. This looks unsellable I guess.

Looks like someone added a perf at the top above the O and S. It should be visible from the back with a glass as well. It also looks like something got spilled on the stamp which may have caused the ink to run, or some ink got spilled on the plate. I suspect the former rather then the latter.

Makes sense. I think it goes in the junk drawer.

Can you post a photo of the back of the stamp?

thanks

Someone turned on the cloaking device.

Looks like a blown engine. Better land that plane quick!

For the person who requested the back of the stamp:

If something got spilled on the stamp we would likely see evidence of this on the back. I don't see any.

Comparing this to a clean copy I see ink smeared where it should not be, but I also see in missing where the design has dark design. look at the bottom of the lower wing.

I'd look at this under magnification, compared to a regular copy. Is the surface showing signs of abrasion? Or did something get stuck to the plate, collect ink and made a mess?

Risny, Is that a possible paper thin on back right, two thirds up.?

My guess is a wiping error (similar to currency)

I doubt it is an added oerf tip, and suspect it is a partial tear/paper layer separation

Jenny ran into some clouds-wiping error- left over ink, and yes to the thin, IMO no on the reperf, just a s short one, sell it-