1961 (10 Oct) Anniv of ROC and 1991 (7 Dec) USS Arizona Memorial
FDC in a group of 5. Former single while latter in set of 4. Tied
by
1961 (10 Oct) Anniv of ROC and 1991 (7 Dec) USS Arizona Memorial
FDC in a group of 5. Former single while latter in set of 4. Tied
by commemorative d.s.
1961.10.10 中華民國五十週年及1991.12.7
美國戰艦亞利桑那號五十週年首日封一組五件。前者一件，後者成套四件，均紀念日戳。
