Radio Guy Historic Novelty Collection

Steve Erenberg has built quite a collection of unusual historic items, with a focus on medical and scientific curios. What you see above is not a prototype for Robocop, but rather, an education mannequin for dental students.
There’s many more antique pieces profiled at his site, called Radio Guy. But while we’re on the topic of dentistry and radio guys, we had to ask: is it true that people can pick up transmissions in their dental fillings? Cecil of Straight Dope explains, in this classic column.
Link: Radio Guy…
(hat tip: MAKE Blog)