CREATE TABLE table_67178 ("Type" TEXT, "Fleet numbers" TEXT, "Quantity made" TEXT, "Manufacturer" TEXT, "Date made" TEXT)

What are the fleet number for the 4-6-4t locomotive?
SELECT "Fleet numbers" FROM table_67178 WHERE "Type" = '4-6-4t'
SELECT "Fleet numbers" FROM "table_67178" WHERE "Type" = '4-6-4t'