LP5000S Anniversary if I'm not mistaken.
I had the opportunity to buy one of these about 20 years ago when they could be bought for buttons (well, £50k but compared to today's money; buttons). I couldn't quite fit one in my garage and so would have had to build a new one which the Mrs of the time vetoed. Still gutted about it now. The one that got away.
Sorry to be an ass but that is the Quattrovalvole. The Anniversary looks like this.