Constellation dials: 'domed' or 'pie pan' or 'intermediate'?

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the cross hair only goes to the central plane edge = pie pan.
Where else should it go, there are the arrow head markers...??
I believe all the way its pie pan because this old ref.
Is the center pigmented by aging or intentionally as art?
Edited:
 
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Where elso should it go, there are the arrow head markers...??
I believe all the way its pie pan because this old ref.
Is the center pigmented by aging or intentionally as art?

Unfortunate degradation, not art.

The crosshairs on a dome dial will go all the way to the edges regardless of the type of indices, including numerals.