Original: Tunnel section recommences Hounslow West , opened 21 July 1884 ( as Hounslow Barracks ) by the District , renamed 1 December 1925 ; first served by the Piccadilly line 13 March 1933 , resited 19 July 1975 .
Simplified: Tunnel section starts Hounslow West , opened 21 July 1884 ( as Hounslow Barracks ) by the District , renamed 1 December 1925 ; first served by the Piccadilly Line 13 March 1933 .