CREATE TABLE table_57938 ("Year" CLOB, "Driver" CLOB, "Constructor" CLOB, "Category" CLOB, "Location" CLOB, "Report" CLOB)

What company constructed the vehicle in the location not held in 1933?
SELECT "Constructor" FROM table_57938 WHERE "Location" = 'not held' AND "Year" = '1933'
SELECT "Constructor" FROM "table_57938" WHERE "Location" = 'not held' AND "Year" = '1933'