Chesapeake & Ohio Allegheny 2-6-6-6: A Retrospective Book The H-8 class Allegheny was C&O’s ultimate Super Power locomotive and has been treated in countless articles and books, however, nothing has been in print on this important locomotive for 20 years. This book contains material originally researched by Gene Huddleston and many other prominent locomotive and C&O historians. Additional material has been added and the resulting text gives the reader a complete and thorough understanding of this iconic C&O engine. Over 100 photographs include many which have never been published in any venue before. Also included are drawings and tables, which help tell the story of the fabulous years from 1942 to1956. This hardbound book should be in the library of every C&O fan!