I bought one of the Bijou de France razors from classic. These are the razors found under limited edition that have vintage celluloid scales (mine has the swan). Does anyone know what material the blade is made from? Is it sheffield or carbon?

I just shaved with the blade this morning. I bought it pre-sharpened. This was a great shave, very smooth. Quite a bit better than the other razor that I have which is a TI super gnome.

Anyway, any idea as to the blade material would be helpful, thanks.