RailroadTreasures offers the following item:   Alco’s HH Series American Locomotive Company’s Pioneering Diesel Switcher SC   Alcos HH Series American Locomotive Companys Pioneering Diesel Switcher Diesel Era By R. Daniel Cupper, David R Sweetland, And Paul K Withers Softbound 127 Pages Copyright 2006 Table of Contents Dedication and Editor's Note.. Preface . Introduction . Early Locomotive Production Demonstrators . Production Begins.. The Model 538 Engine Secondhand Owners. Under Construction.. Prime Mover. Trucks . Spotting Features. Appendix A - Guide to Major Purchasers. Appendix B - Dispositions . Appendix C - Surviving High Hoods Appendix D - Owners and Basic Equipment High Hoods in Color .. Index. Preface From snowy New England to sunny Southern California, and from the shadows of Manhattan to the obscurity of steel mills and ore pits, the American Locomotive Co.'s high-hood diesel switching unit proved to be a durable and versatile product. It opened the door for the firm to eventually sell thousands of diesel switchers across the United States, Canada, and Mexico. Diesel-electric technology gained its footholds in the railroad-locomotive marketplace in two nearly opposite niches: very public, high-profile lightweight passenger streamliners, and workaday, behind-the-scenes yard-switching duty. In the evolving technology of the 1930s and 1940s, Alco took an early lead in developing internal-combustion locomotives for switching use. This faith was well-placed: From 1940 into the early 1960s, Alco and its licensee, Montreal Locomotive Works, sold more than 3,400 of its successful S-series switcher models to North American railroads, bumping thousands of 0-6-0, 0-8-0, and 2-8-0 steam engines into the scrap line. Alco was the only one of the old-line steam builders to pose a serious challenge to the dominance of General Motors Corp. and its Electro-Motive Division, formerly the Electro-Motive Corp. The commercial and technological groundwork for this achievement was laid at an unlikely time - during the Great Depression - by Alco's early investment in diesels for switching use, partly prompted by smoke-abatement ordinances in New York and Chicago that sought to eliminate air pollution from the use of steam locomotives. From 1931 to 1940, Alco built 177 units of its high-hood model, forerunner to its S-series switchers. All pictures are of the actual item.  If this is a railroad item, this material is obsolete and no longer in use by the railroad.  Please email with questions. Publishers of Train Shed Cyclopedias and Stephans Railroad Directories. Large inventory of railroad books and magazines. Thank you for buying from us. Shipping charges Postage rates quoted are for shipments to the US only.    Ebay Global shipping charges are shown. These items are shipped to Kentucky and then ebay ships them to you. Ebay collects the shipping and customs / import fees.   For direct postage rates to these countries, send me an email.   Shipping to Canada and other countries varies by weight. Payment options Payment must be received within 10 days. Paypal is accepted. Terms and conditions All sales are final. Returns accepted if item is not as described.  Contact us first.  No warranty is stated or implied. Please e-mail us with any questions before bidding.    Thanks for looking at our items.