Mountain Instruments MI-250 mount in excellent condition. Extremely stable GEM that is based on the famous Mathis mount. Superb accuracy, 7.5" Byers gear, built-in encoders, and Star Pilot DSC. Also included are manual, 4" Losmandy dovetail. I bought this to mount a 178ED but sold the ED, so now the mount is extra and must go. $2,400 plus shipping.