This is a vintage GEM "Clog-Pruf" Micromatic single edge safety razor made in the 1930s - 1940s.  These use the single edge razor blades such as the GEM Personna and Ted Pella blades.  It gives great close comfortable shaves.  It shows cosmetic wear as you'd expect, but works great and shaves great.  It has been cleaned and disinfected, ready to use.