The Pennsylvania Railroad Air Brake Examination Questions No. 129-D-1 The Pennsylvania Railroad Air Brake Examination Questions and Answers for Locomotive Enginemen, Firemen, Hostlers, Conductors and Trainmen No. 129-D-1 Issued Philadelphia, Pa. March 1, 1961 146 pages plus folded diagrams The stapled binding is in good condition. The pages are tanning and there is a name and date written in front. The diagrams in the back of the book are neatly folded and stapled together but not attached to the book. All the staples are rusted, the cover is stained and edge worn. Acceptable. Paperback. (#12)