In these two random images,
the Queen engraved on a Ceylon issue, represents an example
of a head in the "Mathematical" centre of a stamp.
On the Mauritius, she is in the "focal" centre.
If you download both images, and use an image program
to "toggle" between the two.....
Can anyone suggest why the Ceylon (or, CeyLankan as I have seen :)
image, seems to be "tilting forward" ?
The head is still perpendicular, has the neck been drawn awry?
comments?

