Bickley Station
Bickley railway station lies between Bromley South and Swanley stations on the line from London Victoria. It is managed by Southeastern, and served by Southeastern and Thameslink.
The station was opened by the London, Chatham and Dover Railway (LCDR), on the Chatham Main Line, firstly from the west (London bound) from Bromley; followed a couple of years later by the line from the east, completing the link between Victoria and Faversham, and subsequently, in 1861, to Dover and Ramsgate. To the east of the station are what are known as the Bickley Loops which connect the Chatham Main Line with the South Eastern Main Line, constructed in 1902 by the newly unified South Eastern and Chatham Railway.
There are two island platforms, with 29 steps leading up to the station buildings at the country end of the station, located on Southborough Road. Up to 12 trains per hour stop at the station.
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The cache, a magnetic nano tube, can be found at:
N51 24.ABC E0 2.(D+2)EF
Where:
The line opened from Bromley on D July 18E8
The line opened to Faversham on 3 December B8CA
Numbers of tracks through the station = F
You can check your solution here 
27 Nov 2016 - puzzle changed because of change of information on Wikipedia page.
***** Congratulations to ??? on the FTF *****