Morocco Agencies were a system of post offices operated by the United Kingdom in Morocco.
The first office was established in Tangier in 1857; mail was simply bagged there and forwarded to Gibraltar just across the water, where it received the standard "A26" postmark.
The stamps were overprinted "Morocco / Agencies" beginning in 1898, initially at the offices of the Gibraltar Chronicle, and then later in London, yielding several variations in the appearance of the overprint
Currently showing stamps issued between 1902 - 1910 during the King Edward reign