Looks to me like it's chrome, and good quality plating, but I stand to be corrected.
I managed to get a NOS Gem "G" complete with box, blades, cardboard shipping ribbon round the box and a dead cockroach in the box.
This razor doesn't get nearly enough attention. There is nothing that looks like the G, great design, and it gives great shaves to boot.
Antique styptic??