Original: Headstone Lane April 16 , 1917 September 24 , 1982 Stanmore branch The Stanmore branch was originally constructed by the Metropolitan Railway ( now the Metropolitan line ) and was transferred to the Bakerloo line in 1939 .
Simplified: Headstone Lane April 16 1917 September 24 1982 Stanmore branch The Stanmore branch was originally constructed by the Metropolitan Railway ( now the Metropolitan line ) and was transferred to the Bakerloo line in 1939 .