This is a nice landscape meniscus with no maker's marks that I can find. It includes an ever-elusive flange as well as a felt lined leather cap. The focal length is approx 8" back focus, and approx f12 in the barrel. The barrel is cut for stops if you want to stop it down even further. The flange is approx 3.5" in diameter, so should mount on most 4" boards or larger. The weight, with the flange is 245g, and it stands approx 2 3/4" tall. Glass has no scratches and is in good condition.
As is in the barrel, it looks to me just short of covering 8x10. My 8x10 gg is pretty bad, but I'm pretty sure the corners are darker at infinity. It would cover whole plate or smaller at infinity and should come near covering 8x10 at portrait distances.
However, the fun in these things, IMHO, is when you take them out of the barrel and use them wide open. Then, this thing is about f5.6, covers 8x10 and changes contrast, gets softer and can give glowing highlights.
How about $135 including shipping in the US, Paypal, USPS money orders? I ship elsewhere, but, obviously, the shipping would be more. $$ to APUG if sold here.
Cheers,
Richard