Goerz red dot lens

I have a lens that a friend is having me research, I know nothing about it or what it goes to. if anyone can help me I would be so appreciative :)
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Take a look at: https://www.largeformatphotography.i...c-experts.html

Thanks I will take a look!

It is a process lens, doesn't "go with" anything in particular.

Go to https://www.pacificrimcamera.com/rl/rlGoerzNYmisc.htm, click on the Red Dot Artar brochure (second for left).

I have this exact lens. It's a good match to an 8x10 or larger camera, but also good with 5x7. The long focal length means you'll need at camera with a long bellows to do any portrait or close shots. My old 5x7 camera has just barely enough bellows length to do a landscape shot with it.
It's good that it still has a matching mounting ring. Those can be a headache to track down if it's missing. For a shutter, these are often paired with a Packard type shutter, and this is what I have been using.
If the plan is to do some large format shooting in 8x10 or larger, this is a nice lens to have on-hand.