The Volcanic comes from France. It appears to be a plated brass razor.

It has a stud through the head that swivels. That in turn goes through the base-plate which has a half-spherical section that allows you to tighten the handle up. The fourth image below shows the head at its ± 20° extremes.

Its was made in France probably in the 1920's.

If anyone can more information, Please CONTACT ME.

How does it shave?
Extremely well with deceivingly very little blade feel.