For years I have used the following for buffing keys. A belt driven arbor. There are several available from the catalogs. Get one that has ball bearings instead of bushings. Four 8" buffing wheels. I have two others to use when buffing metal. The stitched type, bot the solid felt type. A common motor, electric, from 1/2 horse or larger. Drive pulleys have to be worked out so the speed of the wheel will not burn plastic or celluloid. You may have to play around with divverent pulleys to get just the right combination. ALso available from the supply houses are buffing compunds, one red the other white. Keytops, including ivory, can be can be sanded to get scratches out of the surface. Sanding requires several steps to a wet or dry 400 or 500 grit before sanding. Use the red compound on one wheel and buff until a sheen appears. Care must be taken to prevent the wheel catching a corner and flinging the key across the room. I have broken more ivory that way. Use the white on the other wheel to bring the shine to whatever sheen is desired. With a little practice you can have very shiny keytops. If there are further questions let me know. Newton nhunt@jagat.com
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