Hads-Ning Herreders Jernbane (also known as Odderbanen or Oddergrisen).  Diesel train shown here at the Gunnestrup station.
No machine-readable author provided. <a href="//commons.wikimedia.org/wiki/User:Erik_Corry" title="User:Erik Corry">Erik Corry</a> assumed (based on copyright claims).
CC BY 2.5
No machine-readable source provided. Own work assumed (based on copyright claims).