cover 1915-18 XU5 (7, one stained), 2d. registered XU5 and postcards (2) to Austria (2), Egypt (3), Germany (2) and Italy, showing a variety of markings including oval "FREE FROM PRISONER OF WAR/PC/MALTA" (POW-6) in black, blue and violet, and oval "FREE FROM PRISONER OF WAR/PC/MALTA" (POW-70/74) in red and with numbers "1" in violet, "2" in blue, red and violet, "3" in violet and "4" in red. (10)