The item pictured is a vintage signal lantern (Railway Signal Lantern / Trench Lamp) fueled by oil or paraffin; its specific design is linked to the industrial and military history of the first half of the 20th century (spanning the 1920s through the 1950s). Its square metal housing, featuring a round lens and a top chimney, is characteristic of British railway lanterns (such as those used by LMS or British Railways) as well as military field and emergency lanterns from the World Wars (such as the German *Blendlaterne*).