[Lovely-Day-For-A-Guinness]

That stain that partially obliterates "MAIDEN" (in the mother section) - you can see where it oxidized the section folded over it, and that oxidation pattern mirrors the top section of the stain.

It didn't oxidize the stain pattern completely since the lower half of the stain doesn't appear there, but that's likely due to the folded section of paper not quite touching the entire stain; the mirrored oxidation is at its strongest along the seam, which is to be expected.

If this is a fake, the forger really knew his stuff to cover his arse.

[bgill]

Top left corner. See the two dots under the “7a 6d” (best I can make out at 400% zoom). Could that be from a staple or what? If so are there indications from the metal parts pressing into the paper or tears when it was removed? Or what are the dots? I can’t seem to zoom in closer than 400%.