Tele Vue 2x Barlow with 1.25" barrel. Excellent condition. The chrome barrel has some sleeks but nothing major. Glass is excellent, as is performance. This is from the version before the captive set screw and/or compression ring, and I've swapped out the original screw (included) with a black Nylon thumbscrew cut to optimal size. The thumbscrew doesn't stick out as much, doesn't mar, and there's no compression ring or lip inside the barrel to get hung up on if you don't insert the eyepiece exactly lined up.
I probably should not sell it as I much prefer this solution to compression rings, and so it can't be replaced so easily, but I'm scaling back on my investment in the hobby.
$75 shipped in CONUS. Will ship outside CONUS with adjustment to cover additional shipping costs. PayPal OK. (SOLD)