1901 - 1945 SPECIAL DELIVERY
ISSUE OF OCTOBER 15, 1901
Watermarked Double Line USPS (191). Perforation 12.
Overprint in Red 

E1: 10c Messenger, Dark Blue

E1a: Dots on Curved Frame Above Messenger
ISSUE OF SEPTEMBER 6, 1906
Watermarked Double Line USPS (191). Perforation 12.
20c Messenger & Mayon Volcano Typical Design

E2P: Ultramrine, Single Die Color Proof

E2: Ultramrine

E2b: Pale Ultramrine
SPECIAL ISSUE OF 1907
Special Printing for the Bureau of Insular Affairs
Watermarked Double Line USPS (191). Perforation 12. Overprint in Red

E2A: 10c Messenger on Bicycle, Ultramarine