I have two Schwalbe One Tubeless 700x23 for sale. Brand new and boxed. These are like hen's teeth in the UK so I picked them up when on holiday in France. I got a (slight) discount on the £60rrp by buying six - off a Schwalbe rep (not even sure they are in shops yet?). I have two on my American Classic Tubeless wheels (which I am loving) and a spare but will sell the others if you want them.
£40 each inc p+p
£80 for a pair