6" f/10 Maksutov-Cassegrain. See Cloudynights for details, reviews. Excellent condition optically, cosmetically it has a superficial scratch on the back plate (see picture) which obviously has no effect on performance. Has bottom rail for mounting on GP-type mount. Includes 12x55 finder, padded case, lens cover, screw-on visual back cover, 1 1/4" diagonal, threaded back for SCT accessories like focal reducers/correctors. Comes with the following extras: Orion red-dot finder, upgraded Intes 2" diagonal, Orion dew shield.
Asking $900 + shipping.