Taking a neck break from traveling shanks (traveling music in the background), and I thought I'd throw this out. When you strip the old sandpaper off hammer rails, it leaves the lettering from the old paper in the glue until you finish cleaning it off. This one said RUBY SAND & EMERY PAPER and RUBY & EMERY CLOTH in one section, and GLUE & PUMICE STONE and GROUND FLINT AND EMERY in another. I don't recall ever running across mention of ruby paper before. Has anyone else? Ron N
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