Most, (if not all) of the Cartouches and Glyphs in Lady A's Chamber are inverted.
This fact proves beyond all doubt, (to most of us) that these Glyphs were NOT painted in situ, but were painted BEFORE the blocks were placed in their current location as it's well known that the AE NEVER painted or wrote their Glyphs, etc. inverted.
This fact also strongly supports the idea that ALL other Glyphs in ALL other RCs were also painted before those blocks were placed in their current location.
[archive.org]
This fact proves beyond all doubt, (to most of us) that these Glyphs were NOT painted in situ, but were painted BEFORE the blocks were placed in their current location as it's well known that the AE NEVER painted or wrote their Glyphs, etc. inverted.
This fact also strongly supports the idea that ALL other Glyphs in ALL other RCs were also painted before those blocks were placed in their current location.
[archive.org]