bad idea: the little slot in the back of the medicine cabinet

bad idea: the little slot in the back of the medicine cabinet razor blade slot medicine cabinet I live in an apartment building that was built in 1939 My bathroom has the original medicine cabinet imbedded in the wall and it has the slot razor blade slot history All these were found after removing a medicine cabinet from the wall Any ideas, why? Image

razor blade slot history There was a slot in the back of the cabinet marked Razor Blades I've lived in several houses with the razor blade slot in the medicine

razor blade slot in medicine cabinet “Old medicine cabinets were installed directly inside the interior “These old units had a slot in the back that was used to discard Hundreds of thousands” is not an exaggeration Does your medicine cabinet have this slot for