1870 (November 9th) Entire letter from Nafplion to Athens franked with 1870 Special print 20l. sky-blue marginal with "02" instead of "20" with "0" inverted (Kound.42.6), superb. The sheet margins have been clipped diagonally at a later date. A very rare item. Certificate Holcombe (1986). (Hellas 31bNdII).