sears/ silverston console stereo radio phonograph

don't know what year it is. has few scratches on the top but the rest is in good condition. everthing works even the jacks on the back for extra speakers and other stuff to hook up to it. it is a sears/ silverstone stereo radio phonograph console. model number 528. 31516 102   serial number is y15062028 need to know how much is worth.