Very interesting old restraint you have there Fernando but I do have a couple of questions on it. Are the s-hooks that attach the chain to the ends original? It seems odd to me that they would have used these on both ends of a welded chain unless they were for adjustment purposes and that would require that at least one would not be crimped shut. Now for the he last and more important question. How is it that after putting this on you dear wife that you are still able to type?
Best,
Robert