1939 DECEMBER 23: IBA, ZAMBALES to MANILA
Provincial Treasurer official mail, rated "6" centavos for Triple Domestic Rate, paid with 2c Rizal O.B. mixed with 1935 4c Pictorial O.B.

Unique Combination
1941 JANUARY 4: SANTA CRUZ, LAGUNA to MANILA
Municipal official mail with 22c postage using 2c Rizal and 10c x 2 Fort Santiago O.B. issues, paying for 6c Triple Domestic Rate and 16c Registry Fee. Backstamped MANILA, January 5.