GREECE: 20l blue (pos.31), inverted keyhole shaped "0" on control number (Kound. 53.10), canc "ΚΑΛΑΜΑΙ*19.ΜΑΡΤ.76". Important for the determination of the settings. Very fine. (Hellas 41dNlII).
GREECE: Cover fr. with 2x20l deep blue, 10l orange and 5l green canc. "ΠΑΤΡΑΙ*24.IOYN.73", via "ΚΕΡΚΥΡΑ*26.IOYN.73", arr. "TRIEST*11/7". Stamps with faults, fine overall. (Hellas 41b+40a+39b).