Well I can tell you it's the Last Supper haha... apart from that you've got it about right. Tabriz, not sure if it is 60 Raj or not, maybe closer to 50 but without a means of measuring it's impossible to tell.
Value is hard to give as a retail value wouldn't mean anything in terms of selling it (unless it was for insurance purposes). At retail, new, in my opinion it could cost anywhere from £4k-10k depending on where you bought it. But it's one of those rugs that would have a very limited market, although you never know there might be strong interest from that small number.
