Looking at the tangs and the tang stamps I wonder if the two razors weren't made in different decades ? The bone scaled example being the older one. I'm thinking that because of the difference in the fonts, styles of stampings, and the way the tangs are shaped. I'd have to go through my razors but some of the letters in the earlier stamp look familiar to me. I'm thinking the font is distinctive enough to ID if I have another razor with same lettering design. I'm wondering if RM & Co didn't have the razors made with their logo stamped on the tang ?