19th Century Group Shaving Machine

Invented in the 19th century, the “mass shaving machine” can shave a dozen men at once.

In 1960, Eric Sykes, an English comedian, demonstrated the device on an unaired pilot for a TV series about 1800s innovations. One reason for its commercial failure was that it could not alter its movements according to face shape.

(Photos by Ken Howard/BIPs/Getty Images)