TOS star charts surrounding the bridge - anyone ever..?

[Jet Beetle]

Posted this over at Trekzone but thought I'd give for some answers here as well.
Anyone ever try their hand at reproing these poster type things. It'd be great to have a set of all of the ones that circle the bridge --

You can see the one behind Spock is a little wonky

Anyone know how they were constructed or maybe even know someone with good shots of all of them? Be cool to have a set.

 

[Ghost Host]

They look backlit. Maybe printed on acetate?

 

[tim]

In the first photo, it looks like some of the images are printed on paper. That just may be the lighting, though.

Another thing to check might be the Enterprise two-parter, "In a Mirror, Darkly." As I recall, they duplicated those images and added a bit of animation so they look more like functional display screens.