This a very nice, heavy duty diagonal with undercut on barrel. Excellent condition, like new except a couple very small barrel marks. No brand name, but labeled made in Japan. Mirror looks perfect and clean, gave very nice images. I've never cleaned it. Includes caps. No 1-1/4" adapter. Reduced to $62 firm, shipped CONUS, prefer Money Order. Sorry I don't do pay pal. Please note my Astromart rating. Thanks for looking.