I done good  

More pics
More pics

last one
last one cleaned up a bit, any guesses on the wood?

Could it be...
A sewing (machine) table?

Almost
certainly a sewing machine table.

Possibly, the bottom of the...
Possibly, the bottom of the glass case drops to about 35 degrees so you can get things in and out. I'm not sure a sewing machine would fit in there either, also why would a sewing machine have a lock and a backlit display case In purple velvet?

It certainly could be a retro...
It certainly could be a retrofit but seems a little to ornate.

It has the look of a sewing machine
table, sort of---the top is the right size, the opening is about the right size, but there's no reason for the opening to be that shape. In fact, it wouldn't physically support a sewing machine if it didn't have all 90º angles. The cutout looks kind of homemade from the underside. I wonder if someone hacked a commercially-made table into a vanity/jewelry display case? I don't know. Not a sewing machine table, though.
The tiled table looks homemade. Are the chairs comfortable?

Yes
I concur with Spanky, it has the look of a sewing machine table, but the lock and opening shape make no sense.
Could have been made for a jewellery store?

I doubt any of these were...
I doubt any of these were home made but again its possible, they came from a bankers apartment in Manhattan. The desk looks like it could be a custom piece, possibly a vanity for jewelry storage, who knows. The display case seems to small for any retail application, and the strange hourglass shape just adds to the confusion. How would you describe the shape?
first picture shows the table top.
The second picture shows how the bottom folds out.

The tile topped table totally thumps!
but the sewing machine cum -vanity table looks as though it could have been built out of wood by a horny old man in his garage.
Hi,
Aunt Mark
ps I believe that I now owe LRF 75 cents.

horny old men like screw-on legs
I think the tile table is homemade too. The leg mounts would not have been used by a manufacturer - they look like the aftermarket type sold in hardware stores in kits with the screw-on legs. They have two screw holes to choose the angle that the legs will be mounted at. Horny old men need options - but manufacturers don't.

If the tile top table was hom...
If the tile top table was homemade. It would have taken someone a very long time, with decent geometry skills. Didnt some stores let you choose the legs you wanted? One of them has been replaced with a different bracket
As old, horny and man-gravy infested as the desk may look, the pictures don't do it justice. The top is easily 5" thick walnut butcher block. The legs appear to have some marks on them where they meet the top but I can't quite make anything out.

I must be missing something:...
I must be missing something: what geometry skills are required to make the tiled table?

Right, geometry is not...
Right, geometry is not exactly what I meant. Symmetry and time would be more relevant.
Lief, as the wood whisperer (hehe) do you also think the desk is a homemade hack ?