42 Peculiar Products of the Past...
This little number shown above is The Isolator, a brainchild of one Hugo Gernsback, who is now often referred to as a pioneer of science fiction. The device, advertised in a 1925 issue of Science and Invention magazine (...
https://www.neatorama.com/2014/10/17/42-Peculiar-Products-of-the-Past/
