CREATE TABLE table_203_394 (id DECIMAL, "title" TEXT, "author" TEXT, "date" DECIMAL, "length\ ( first edition ) " TEXT)

what year was the earliest bull dog drummond published ?
SELECT "date" FROM table_203_394 WHERE "title" = 'bull-dog drummond' ORDER BY "date" LIMIT 1
SELECT "date" FROM "table_203_394" WHERE "title" = 'bull-dog drummond' ORDER BY "date" NULLS FIRST LIMIT 1