CREATE TABLE table_204_30 (id NUMBER, "year built" CLOB, "works number" NUMBER, "wheel arr." CLOB, "gauge" CLOB, "original owner" CLOB, "name" CLOB, "current location" CLOB, "notes" CLOB)

aside from 316 , what was the other works number used in 1883 ?
SELECT "works number" FROM table_204_30 WHERE "works number" <> 316 AND "year built" = 1883
SELECT "works number" FROM "table_204_30" WHERE "works number" <> 316 AND "year built" = 1883