INVERTED CONTROL FIGURE "80" USED ON FRONT. 80l. deep carmine with inverted control figure used on front of printed form together with 1871/76 red-orange (touched at right). The 80l. is in absolutely immaculate condition with good to excellent margins and good cancel. Only two known (see Koundouros 33.1 p.90). A most important rarity and a marvelous postal history exhibition item. (Hellas 22bNm+40b).