Tut;

Your Fox gun is a beautiful piece of art, and the color of the final finish of the action, brings the engraving to life. After the case hardening did Gournet polish the case coloring away with the results being the color of the action now, or did he use some light chemicals after he polished the case coloring away to result in the magnificent color of the action? If he used chemicals did he use something as mild as Naval Jelly?

Kindest Regards;
Lowveld