1933 FEBRUARY 13: MANILA to WASHINGTON
Bureau of Treasury official mail with 30c x 4 Franklin O.B. for 1p-20c Multiple First Class Rate to the U.S., at 96c rate for 16 times weight or 480 grams plus 20c Registry Fee (overpaid by 4c). 

Plate 34796: Top Margin Block of 14
1939 MAY 17: MANILA to WASHINGTON
Bureau of Treasury registered official mail, postal rate identical to the 1933 cover illustrated above.