CREATE TABLE "table1_2159506_3" (
  "state_class" text,
  "vacator" text,
  "reason_for_change" text,
  "successor" text,
  "date_of_successors_formal_installation" text
);

Question: Name the state class for resigned november 3, 1964
SQL: SELECT "state_class" FROM "table1_2159506_3" WHERE "reason_for_change"='Resigned November 3, 1964';