I’ve had a couple of these later B-15s. Unless you’ve spent a tremendous amount of time with the classic blue check tolex versions, you’d be very hard pressed to tell the difference between the those and these later ones. The blue check tolex ones are now going into the $1400-1500 range, and the later ones like this aren’t far behind. So $800 makes this a pretty good deal.
Seller says it’s missing a knob and a latch, but you can get proper repros cheap at www.fliptops.net