Help ID this camera mount

[astronv]

Hi there,
I recently got this relay lens for a night vision device and I am trying to figure out what camera is this mount suppose to go ? Anyone has any idea ? I am guessing it may be a K-mount but I don't have any to compare it with.
Thanks in advanced.

 

[Tiberius]

A bit of Googling brings this image:

Looks different to me. Probably isn't a standard mount.

 

[ksmattfish]

It's hard to tell scale in the photos, but it looks bigger, and bulkier than typical bayonet, camera mounts. What is the nationality of the night vision device manufacturer?

 

[astronv]

It is an American company called OST. I've tried to contact them but got no information back.

 

[Torus34]

Check

http://rick_oleson.tripod.com/index-99.html

 

[usayit]

Looks pretty similar to the "Petri SLR" mount featured in the link posted above minus the diaphragm and meter indexing.

http://rick_oleson.tripod.com/lensmounts/petri.jpg

 

[markc]

I don't see tabs (bayonet style) or threads on the lens. I'll bet it's not a standard mount and is a proprietary system. Hard to tell from the pics though.