Killen-Strait Armored Tractor
The Killen-Strait armoured tractor was an experimental armoured tractor constructed by the United Kingdom in 1915. The vehicle consisted of the superstructure from a Delaunay-Belleville armoured car, with the turret removed, fitted on a tractor produced by the American company Killen-Strait. A predecessor to the Little Willie, the vehicle is sometimes described as the first tracked armoured vehicle.