cover Possessions, 19th-20th Century, twenty-one covers or cards (three unused), incl. 1917 World War I post card from Cayey (Puerto Rico) with 'Our Allies' patriotic design, eight from Canal Zone, three from Hawaii, six from Philippines, two from Ryukyu, and also U.N. no. 38 on First Day Cover, most appear fine-very fineest.