19 Astonishing Historical Photos You’ve Probably Never Seen

15. A full-faced swimming mask that was to help protect women’s skin from the sun (1920s)

16. The isolator which helps you think, virtually making you hear nothing. It even has oxygen hooked up to it. (1925)

17. Americans using the old-fashioned zip line. (1923)

18. A police officer on a Harley-Davidson transports a prisoner in a holding cell (1921)

19. “Pin boys” set up bowling pins while people play games (1914)

Credits: sliptalk.com