Original: Rayners Lane, opened March 1, 1910 by the District; first served by the Piccadilly line October 23, 1933 (from here to Uxbridge trains share track with Metropolitan Line, and some trains terminate here).
Simplified: Northfields, opened 16 April 1908 by the District (one of the two depots is here and some trains terminate here); first served by the Piccadilly Line 9 January 1933. Rayners Lane, opened March 1, 1910 by the District; first served by the Piccadilly Line October 23, 1933 (from here to Uxbridge trains share track with Metropolitan Line, and some trains terminate here).