1930s radio ac plug for the power cord

I am looking for a 1930s vintage plug that was connected to the end of the power cord of most radios that pluged into the wall ac power outlet. See the attached picture of this plug. I can accept one identical to the one in the picture, new or used, or of a slightly different vintage design. The color is usually dark brown or black.These plugs were also used on table and floor lamps in the late 1920s and 1930s.