This talk of restoring Rolls Razors never covers the restoration of broken hones. I was under the impression that it could not be done therefore I had to try it. It can be done and it is not difficult. With today's vast assortment of adhesives there must surely be some that would glue two mating edges of the same material together. I have found two and there are probably many more. What I wanted was an adhesive that was not too viscous and not too watery. I started by lightly brushing the edges to be joined to remove any loose material. The first one I tried was Instant Crazy Glue - All Purpose. A trifle thinner than I wanted but it worked. It left tiny gaps where material had come away from the stone but they did not cause a problem at all. One edge of the piece to be glued must first be dampened with water. The second one is Rapid fix. The same viscosity as the crazy glue but no need to dampen one side. It is a rapid drying adhesive - about 30 seconds which I prefer to the instant set. There is a bonus. A second bottle of very fine white powder that may be spread into any gaps after the glue has set. Then a drop of the liquid and it turns instantly into a solid that may be sanded or scraped. I needed a perfectly flat surface so I started off with a piece of glass larger than the hone. To keep the hone from sticking to the glass I covered the glass with one layer of plastic wrap pulled taut and wrinkle free. I put the two pieces of the hone on the glass face up and made sure they mated perfectly. I then followed the instructions that came with the glue holding the hone pieces down and together with my hands for the specified time. I was careful not to exert so much pressure as to crack the stone. This is a part of the operation that I may be able to refine with the use of a clamp. It worked. I could feel that both sides were even as were the edges but just to be sure I sanded the join with 400 wet paper. The one with the tiny gap that I filled in with the white powder required a little more sanding. It has now been 6 days with lots of honing in which the blades continue to pass easily and smoothly over the joins and my face. Everything still seems secure. There is a dark stain around the join which is a small penalty to pay for having rejuvenated, useless hones. My next test will be with Crazy Glue Advanced which is a gel that might fill any gaps itself. So now it's off to eBay to find a cheapy with a broken hone.