Early rotary action light switch, wooden, by Joel, 1890
Science Museum Group
© The Board of Trustees of the Science Museum
Early rotary action light switch, wooden, by Joel, 1890
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Early rotary action light switch, wooden, by Joel, 1890
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Early rotary action light switch, wooden, by Joel, 1890
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Early rotary action light switch, wooden, by Joel, 1890
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Early rotary action light switch, wooden, by Joel, 1890
Science Museum Group Collection
© The Board of Trustees of the Science Museum