CREATE TABLE table_9448 ("Tie no" TEXT, "Home team" TEXT, "Score" TEXT, "Away team" TEXT, "Date" TEXT)

What is Tie No, when Date is 18 February 1956, and when Home Team is Charlton Athletic?
SELECT "Tie no" FROM table_9448 WHERE "Date" = '18 february 1956' AND "Home team" = 'charlton athletic'
SELECT "Tie no" FROM "table_9448" WHERE "Date" = '18 february 1956' AND "Home team" = 'charlton athletic'