The 1884 collection shows maps of the complete length of the Nickey Line.
The 1887 collection shows only two maps, one of Hemel Hempstead Gas Works and one of Hemel Hempstead & Boxmoor Yard.
The 1898 collection shows maps of the complete length of the Nickey Line. These map images are of Ordnance Survey maps originally owned by London Midland Railway.
The 1924-15 collection shows maps of selected parts of the Nickey Line.
