10" f/6 primary, don't know the manufacturer, I bought this on Astromart a year ago and used it in a homemade dob. Images good and sharp to about 330 power, the limit of my eyepieces. The surface of the mirror is in great condition, except for some dust which you can see a bit in the pictures. I blew off some of the dust with compressed air, don't want to clean it further and risk any damage!
When I removed the mirror from the cell it left a small smudge on the corner which could probably be removed easily. The mirror is center marked.
Mirror cell by University Optics, four vane spider by Astro Systems, 2 1/4" secondary mirror (Orion) mounted in holder, and 2" rack and pinion focuser with 1 1/4" adaptor, I think this is also an Orion accessory. The only thing wrong with any of this stuff is the little bit of dust on the mirrors.
I will sell for $400 including UPS shipping anywhere in the continental US. Thanks!