This really neat, red and white, GB, KGV, 5/.((GB) SG 416) issue was used at the British Army Post Office in Constantinople, Ottoman Empire on March 20, 1920! It's in very good condition, with two creases of various sizes(best seen from the back), and a shorter perf or two at the bottom, right side. There is a hinge remnant at the back, too. The parts of the two cancels from the British A.P.O. pretty much equate to one, complete, CDS! This is a very attractive example of this stamp used abroad during the Greco-Turkish War of 1919-1922!