Help...What Kind Of Display Is This?

[double]

Need your help, I acquired two of these in a bundle purchase and have never seen them before. May be a stupid question but what glasses or item was displayed on it? What would you say it's worth?
Thanks for the help!!

 

[RetinaBurn]

I believe that's an old M Frame lense display. It was used to display the lenses only for the M Frames.

 

[double]

Cool, thanks Retina! Makes sense...

 

[Gix_916]

I believe that's an old M Frame lense display. It was used to display the lenses only for the M Frames.

i also agree its an mframe array display