Midland Lines. BR(M) Hours of Opening of Signal Boxes Booklet.
1960 London Central Hours of Opening of Railway Signal Boxes Southern Region
BR SR HOURS OF OPENING OF SIGNAL BOXES. Worthing - Weymouth & Branches 1955. VGC
1957 London Midland Midland Division Hours of Opening of Railway Signal Boxes
BR(M) Hours of Opening of Signal Boxes Midland Lines 1960 + supplement
1948 London Midland Western Division Hours of Opening of Railway Signal Boxes
1960 London Midland Western Lines Hours of Opening of Railway Signal Boxes