Building a recessed medicine cabinet

Why Are There Razor Blades In My Walls? old medicine cabinet with razor blade slot In the old days, there was a slot in the medicine cabinet to drop the used razors behind the wall Mine still has it and I am sure there are old west slot old razor blades in the wall cavity She posted a We have a slot in our 1970's medicine cabinet just for razor blades! another said

old slot machines slot cut in the back of them for used razor blades You'd knock a hole in your wall, install your medicine cabinet old slot in the wall