CREATE TABLE table_58464 ("Number & Name" TEXT, "Description" TEXT, "Livery" TEXT, "Owner ( s ) " TEXT, "Date" TEXT)

What is the date of the British Rail class 111 tslrb description?
SELECT "Date" FROM table_58464 WHERE "Description" = 'british rail class 111 tslrb'
SELECT "Date" FROM "table_58464" WHERE "Description" = 'british rail class 111 tslrb'