Light Brown to Golden Brown Shipped to Manila September 1, 1938: 361,536

Plate 139333: Top Margin Block of 4 Type I Spacing

Plate 131563: Bottom Margin Block of 6 Type II Spacing

HORIZONTAL SPACING BETWEEN O and B

Type I -- 9.2 mm

Type II -- 10.5 mm

1941 NOVEMBER 26: MANILA to ENGLAND Office of the President official mail franked with pair of 6c La Filipina O.B. with Type I spacing for proper 12c Single Outbound Rate to Europe. Censor re-sealing tape folded at left.