The tradional bakelite door handle
Bakelite was the world's first industrially manufactured plastic and has been used for telephones, electrical outlets and camphor. In houses from the 1930s, it was very common with the so-called Zeppelin handle or Torpedo door handles of black bakelite. They still produced and is completely identical to the original Zeppelin door handles.
Other manufacturers dørgrebs bakelite applied to the handle. Both because Bakelite is a poor conductor of heat, as opposed to metal, and therefore feels the door handles are hotter than a similar door handles in pure metal.
In fact, bakelite very widely used in northern Norway and Sweden because otherwise one's hands may freeze to the cold metal. But of course by design reasons combining brass or chrome with bakelite.