Here's a growing collection of Pennsylvania Railroad (PRR) booklets, newsletters and other documents reproduced in their entirety. They are PDF , HTML or page by page scans in .jpg format.

PRR I NTERLOCKING D IAGRAMS A LPHABETIC I NDEX [ Note to Contributors | Copyright & Licensing Agreement | Acknowledgements ]

Pittsburgh Division BU, UF, US & PH Interlockings Sheet #23 10-3-1947 copy (PRR Pgh Yard Maps.pdf) 9.462MB Ft. Wayne Rev. 1-1-1953 (PRR Ft. Wayne Interlocking Chart 5-3-1930.pdf)

These diagrams were distributed without copyright notice. They were usually created by and reproduced for the use of railroad employees and government agencies.

Aug 10, 2016 · Below are several hand-drawn interlocking tower diagrams, most of which are from the Chicago area in the late 50s and early 60s. A few are from New York and Pennsylvania. Photos are …

For those of you into the modeling aspect of our hobby, my indexa page has a list of almost everything railroad oriented I can think of to provide you with at least a few pictures to help you detail your pike.

These PRR interlocking diagrams cover the Harrisburg Division including the Enola classification and hump yard. This is the Pennsylvania Railroad Southwestern Region main line between Indianapolis …

This outstanding publication fea-tures the Milwaukee Road's official collection of interlocking diagrams from the early 1900's, all beautifully illustrated, as issued by the signal department.

All of these diagrams have been scanned and are on these pages. I've also added a number of missing diagrams from my own collection and Bob Johnson has graciously sent me copies of additional …

Large collection of PRR documents and drawings as well as a large body of Volunteer Relief Department enrollment cards, which are arranged in five series in alphabetical order.