Shown above from top to bottom and left to right: Mogul Heisler No. 1601, Schaefer, Fort Wayne "Jenney", Mogul Bernstein No. 1603, Brush-Swan, United States, Thomson-Houston, Loomis, Perkins (or Mather), Westinghouse Stopper, Elblight, Truitt, Ediswan double contact, Italian, Westinghouse, Hawkeye.