CREATE TABLE table_66252 ("Class" CLOB, "Wheel arrangement" CLOB, "Fleet number ( s ) " CLOB, "Manufacturer" CLOB, "Serial numbers" CLOB, "Year made" CLOB, "Quantity made" CLOB, "Quantity preserved" CLOB)

What year made has a Quantity made of 4?
SELECT "Year made" FROM table_66252 WHERE "Quantity made" = '4'
SELECT "Year made" FROM "table_66252" WHERE "Quantity made" = '4'