AS

AS perfins on Sudan stamps stands for "Army Service". There are two different types.  FFile:Sudan AS a.A.webp|large type of 1913-22 
 * In 1913-22, the large type was issued with the crossbar of the "A" with two holes.
 * In 1922-24, the smaller type was punched on the definitives of the time. The crossbar of the "A" had just one hole.
 * The creation of the perfins were stopped at the the end of 1924 and remaining stocks were used up.

[[Category:A]]