CREATE TABLE table_203_153 (id NUMBER, "stamp issue date" CLOB, "stamp set" CLOB, "#cards" CLOB, "card set ref" CLOB, "qty. issued" NUMBER)

which was the only stamp set to have more than 200,000 issued ?
SELECT "stamp set" FROM table_203_153 WHERE "qty. issued" > 200000
SELECT "stamp set" FROM "table_203_153" WHERE "qty. issued" > 200000