1908 - 1910 Uprated Postal Envelopes
to Michigan and Manila

1908 JUNE 10: MANILA to MICHIGAN
2c Penalty envelope with additional 8c for proper quintuple rate to the U.S. handstamped O.B. in blue.

1910 APRIL 24: BAGUIO to MANILA
2c Rizal green on blue official envelope with added 4c and 20c Regulars handstamped small O.B. in
black for 26c triple registered rate via Special Delivery, fee paid accordingly.