Today in Postal History

This commercial cover was mailed in Baghdad, Iraq, where it received two bouncing strikes of a CDS.

The sender chose to use the Overland Mail service which ran from Baghdad to Beirut to Haifa.
The Overland Mail was a motor vehicle service across the desert.
The narrow perforated, bi-lingual OVERLAND MAIL label was used specifically for this desert  route.

There are no arrival or other transit narks on the face of the cover.

The addressee was with a manufacturing firm in Berlin.

The cover is franked with stamps from the 1923-35 issue.
The ½ Anna olive green portrays a Sunni mosque;
the 1½ Anna carmine lake displays an Assyrian motif;
and the 4 Annas dull violet shows a color-bearer of the Dulalm Camel Corps
(Scott 1, 3, and 6, respectively).