CREATE TABLE table_33975 ("'Name' or designation" CLOB, "Wheel arrangement" CLOB, "Builder" CLOB, "Year built" CLOB, "Year withdrawn" CLOB)

what was the builder in 1929
SELECT "Builder" FROM table_33975 WHERE "Year built" = '1929'
SELECT "Builder" FROM "table_33975" WHERE "Year built" = '1929'