I'll add a pic tonight after work.
It came off an old Polaroid camera that had a sport finder on top. But the film was jammed up and the shutter release button missing so I took the lens off.

It's a Xenar in a shutter. Speeds are a little slow so it could use a cleaning. But from 1/25 and faster one could work with it as it is.
Also includes a ND filter, though I don't know its spec.
Glass is perfect.

The only challenge is - the shutter remains attached to its camera mount. I can't figure out how to get it off. So I'll leave that to you.

$50 + shipping.