The 2002 Hawaiian Missionaries stamps were denominated at 37-cents and reproduced examples of Hawaii's first four postage stamps, which were issued in three denominations: 2-cents, 5-cents, and 13-cents. The stamps are called "Hawaiian Missionaries" by philatelists because most of them were used on correspondence mailed by Christian missionaries from Hawaii to their families, friends, and business associates. These rare stamps are now considered among the world's foremost philatelic items. Only twenty-eight covers bearing Missionary stamps are known to exist, and only one surviving cover bears the 2-cent stamp.