Solved! What camera mount is this?

[Tubas500]

I've been looking all around the internet and i cant seem to find what camera mount this is.
What cameras could be used with it?
Thanks in advance.

 

[rgd1101]

http://camera-wiki.org/wiki/Topcon_UV_lenses

 

[Tubas500]

http://camera-wiki.org/wiki/Topcon_UV_lenses

Thank you for replying.
I saw that but it only shows 2 cameras being compatible. Is that true?

 

[USAFRet]

Thank you for replying.
I saw that but it only shows 2 cameras being compatible. Is that true?

It appears to be a lens for those specific Topcon cameras.