What is this?

[Shaps]

Found this on Ebay without a description. The ring has four magnets at 12/3/6/9 o’clock. Thinking it might be a paper clip holder?

 

[MattKing]

Nikon branding is on a lot of things - including eyewear.
So it could be related to something that has nothing to do with photography.

 

[mpirie]

Maybe an "Executive Toy" with a spinning centre kept there by the magnets?

Mike

 

[Kino]

Maybe an "Executive Toy" with a spinning centre kept there by the magnets?

Mike

That was my thought; a "floating" logo or similar...

 

[Molli]

My friend used to run a second hand camera store and I'm fairly certain I saw something like this as part of one of his displays, although it was a Minolta promotion if I'm remembering correctly. I think it was used to display/hold lenses or something, not being in itself the thing on display.

Sorry, that was a derailed thought there!
I think it was a type of stand used to display a lense.