Northfields , opened NUMBER@1 April NUMBER@2 by the District -LRB- one of the two depots is here and some trains terminate here -RRB- ; first served by the Piccadilly line NUMBER@3 January NUMBER@4 .

Northfields , opened NUMBER@1 April NUMBER@2 by the District -LRB- one of the two depots is here and some trains terminate here -RRB- ; first served by the Piccadilly Line NUMBER@3 January NUMBER@4 .
