Old lens with glass in very good condition, with two caveats: the lens hood is a bit rough around the edges and the lens is missing the iris. The rail or ledge or whatever you want to call it is still there, but no iris leaves.
This is a hefty chunk of glass. Outer diameter of the flange (included) is about 4-5/8". I'll also include a jar lid that has a nice tight fit around the front, working well as a lens cap.
You could mask off the front to make your own iris (like an external waterhouse stop), or even find another one of these with funky glass and get the best of both into one.
$500 shipped anywhere in the US. $550 anywhere else. Paypal preferred (gift or add 4% for fees) or postal money orders accepted.