This 2640 has a K79 serial, so made in November 1979. Most catalogs show it as model 2640.
But the German catalog from June 1980 presents this guitar (still with Super 80s) as AR-1200AV It can be seen in the last pic of the gallery below..
Anyway, it’s a heavy beast, as expected it plays and sounds really great.
The condition is pretty good, just some small scratches on the back an a small ding on the upper part of the body.
All electronics work, pickups and tuners are all original, frets seem to be almost unplayed. Even the gold plating of the Super 80s is in great condition in contrast to most PUs of that era.
The pictures show speed/barrel knobs except of one. In between I changed them to period correct Sure Grip knobs from Andy/porkpie.
Both Gibraltar bridges show the usual wear – so it has been played but had a careful first owner.