ID/Info request on antique equipment

[JamesLincs]

Hello all. I hope this is the right place to pose such a question, but can anyone give me any information at all about the piece of equipment in the photographs? I have no idea! Thank you.

 

[Fujidave]

I have not got a clue what it is, something to do with aperture maybe.

 

[Jeff15]

No idea but it looks interesting.............

 

[JamesLincs]

Thanks for looking anyway. Really puzzling.

 

[tirediron]

With the right-angle iris and threads; something for microscopy?

 

[compur]

Does it contain any optics?

 

[JamesLincs]

Thanks - I think microscopy could be a good shout!

No optics.

 

[IanG]

I'd like to see better photos, it's the third one that puzzles me. What makes you think it's photographic?

Ian

 

[Dave442]

It looks more like some sort of throttling valve the just happens to use blades to control the orifice opening.

 

[compur]

If there are no optics in it then I don't think it's a photographic device. As Dave442 said, it appears to be some sort of fluid valve.