The ivy over the wall in this photo has recently been cut back. On either side of the arched entrance in the brick wall on the left you can now see two enormous old painted advertisements. The one on the north side is easier to see than the one on the left (south side). I have found no photos of this wall that clearly shows what these advertisements were for. At the top of the northern one, you can just about make out some lettering. I can possibly make out FARR.... and wonder if it might be for FARRINGTONS, once the lime and coal merchants of Reigate. Is it possible that anybody has a photo that shows these advertisements? The photos of the tunnel are usually too oblique an angle to make anything out.