For their service after NUMBER@1 , see LOCATION@1 Underground NUMBER@2 Stock The British Rail Class NUMBER@3 electrical multiple units were built by ORGANIZATION@1 in NUMBER@2 , for use on the ORGANIZATION@2 .

For their service after NUMBER@1 , see LOCATION@1 Underground NUMBER@2 Stock The British Rail Class NUMBER@3 electrical multiple units were built by ORGANIZATION@1 in NUMBER@2 , for use on the ORGANIZATION@3 line .
