CASTELLORIZO: 1920 Registered envelope to Paris, franked "OF CASTELLORIZO" hs on France Sower 25c and Merson 50c, both neatly tied by large "CASTELLORIZO / CORPS OCCUPATION" cachet in violet with anchor, very fine and extremely rare, cert. Behr (1995) & Ceremuga (2004). Note: Only 500 printed of the Sower 25c and only 200 printed of the Merson 50c . (Image)