sixpenceee: 1930’s Dental Phantom. Dentists used to work on these steel gums & teeth for practice. The rubber face was so it would be more “human” to work with. 

sixpenceee: 1930’s Dental Phantom. Dentists used to work on these steel gums & teeth for practice. The rubber face was so it would be more “human” to work with. 

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from: https://ticklemeviking.tumblr.com/post/116948258224