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

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'