Inverted PSB pane from Submarines & Astronomy books

It's nearly 9 years since the "Unseen and Unheard" prestige stamp book was issued (October 2001) but there are still discoveries to be made.

I'm sure this isn't a new discovery - in fact I believe the person who provided the photo told me that he had had one before - but this is the first time I've been able to show a picture of the Scotland definitive pane 4 inverted:

The (upright) interleaf page can clearly be seen on the left, and the stamp pane, although perforated properly, is miscut and another row of perforations runs through the white line at the top of the image.  This one was discovered recently in a dealer's stock.

Walsall had more trouble with the 2002 Across the Universe PSB, and somebody sent me this image at the time:

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This is also inverted and miscut - the reverse shows this well, with two rows of rouletting clearly visible on the 'fly' (unstitched) end of the pane:

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