This presentation will discuss the cancels and other markings used by the British Post Office in Jerusalem from 1917 to 1948. This will include cancels used at the Head GPO and the sub-offices beginning with the Army Post Office SZ44, followed by the Occupied Enemy Territory Administration of the Egyptian Expeditionary Force, the Civil Administration and the Mandate. Also discussed will be the postal markings used for the various communication services of the Post Office including telegraph, telephone, money orders, savings bank, and vehicle licenses.