Angola 1911 D. Carlos I Overprinted

=Description=
 * Issue Date:  1911-08-20
 * Withdrawn: 
 * Designed by:  Eugéne Mouchon‎
 * Engraving: 
 * Printed by: 
 * Print Process: 
 * Paper: 
 * Width: mm
 * Height: mm
 * Perforation: 11½ x 11½
 * Watermark:
 * Format: Sheet of
 * Booklet:  N
 * Phosphorescent band in stamps: N

=Overprint=

=Stamps=

=Errors= There are numerous double inverted and shifted overprints, and it is supposed

made purposely, leaving clandestine from Casa da Moeda.

Data Serie
=Notes=