The Sentinel History Alley & MacLellan Waggon Works Vol 1 1875-1930 1st EdThe Sentinel: A History of Alley & MacLellan and the Sentinel Waggon Works Volume One: 18751930, by W. J. Hughes and Joseph L. Thomas. This hardback volume documents the early history of Alley & MacLellan and the development of the Sentinel Waggon Works, covering steam road vehicles and industrial engineering from the late 19th century to 1930. The book includes illustrations and photographs throughout. Condition Signs of age present, including page