Help me identify this saddle scope mount?

I got this in a box of goodies.

It doesn't fit my Mossberg 835, and I don't have any other shotguns to try it on. I'm not even sure of the brand.

I've scoured Google for about an hour trying to find one similar to no avail. Hoping somebody here may recognize it.

Thanks in advance for any help!

 

Looks like an old b-square mount

http://www.safariland.com/bases-and-mounts/shotgun/


like the ones here in the link

 

Thanks Leadbutt. I can't tell if those are plastic or aluminum, mine is aluminum. Any idea what shotgun this may fit?

 

All I have ever used or seen are the aluminum models, don't know if they where offered in plastic or not,, can't tell from the photo what model it fits