CREATE TABLE table_30926 ("GE-DL works no." FLOAT, "Year built" CLOB, "Built for" CLOB, "Original no." CLOB, "New owner" CLOB, "New no." CLOB)

What is listed in built for when the original number is 24d?
SELECT "Built for" FROM table_30926 WHERE "Original no." = '24D'
SELECT "Built for" FROM "table_30926" WHERE "Original no." = '24D'