I got this one today and It is bone scales. I think. I removed the blade and cleaned the scales in soft scrub and a brush and now there soaking in polident overnight to see if it will brighten them up some. the blade i've got on the work bench and am using the normal run of wet dry paper with WD40. The blade is cleaning up fair but slow. no surface rust or pits but there is some staining that is resisting the wet dry a little. it's going away but slow. I do think it's going to be a good razor when finished. It is a D Miller and marked improved silver steel. There's no address on it.