Vintage Concord 300 Reverse-A-Track Portable Reel to Reel Audio Recorder WITH box VERY CLEAN UNIT. Comes with bonus reels.  I am by no means knowledgeable of vintage electronics. This was purchased at a high end estate auction. The owner was a collector and had nothing but clean pieces. I do not know how each function should work. I did test it and it powered up. Please see photos and ask any questions. Thanks you.