Electro Voice RE 16 Dynamic Cardioid Microphone Vintage

This is an Electro Voice RE 16 dynamic cardioid microphone-it is about 7 1/2 inches long-as seen in the picture there is surface wear here and there-a tiny part at the top looks like it is overlapping and it has a tiny rust spot as seen in the picture-I have no way of testing these so I am selling as is-they were used at a camp years ago-selling as is-this is a smoke free home