Harrow Signal Box - Visit 2

A second visit has been arranged to view Harrow Signal Box. Opened in 1890, re-sited in 1948 and extended in 1960, it is London Underground's largest operational signal cabin. It is scheduled for closure as part of the Four Lines Modernisation (4LM) re-signalling programme.

NOTE: The number of places on this visit has not yet been confirmed so I've set the limit conservatively. I'm expecting this to increase so if you are put on the reserve list then don't assume you won't get a place. The correct party size should be sorted out in the next week.