Made in Japan for the Model #310. Very smooth alt-az mount will hold a 80 or 90mm F11 refractor or up to a 4" Short tubed refractor or a small Mak or Schmidt Cassegrain. Has dual slow motion cables. Has some scratches from use and transport. Functions great. All you need to do is add tripod legs to have a nice, solid mount. $75 shipped CONUS. Money order preferred. Paypal accepted but please ad $2.50 to cover fees. Thanks for looking.