CREATE TABLE table_203_253 (id NUMBER, "model" CLOB, "frame" CLOB, "years mfg'd" CLOB, "caliber ( s ) " CLOB, "production" CLOB, "barrel" CLOB, "notes" CLOB)

which model is the only model to have the lowest caliber ?
SELECT "model" FROM table_203_253 ORDER BY "caliber(s)" LIMIT 1
SELECT "model" FROM "table_203_253" ORDER BY "caliber(s)" FETCH FIRST 1 ROWS ONLY