Entire letter canc. linear "ANCONA" in red and oval "AGENZIA DEL LLOYD AUSTRIACO Ancona" to Nafplion. Oval cachet "ΥΠΕΡΘΑΛΑΣΣΙΟΝ", transit postmark "ΠΑΤΡΑΙ*9.ΜΑΡΤΙ.1841", arr. "ΝΑΥΠΛΙΟΝ*12.ΜΑΡΤΙ.1841". Postage markings "70" (front) and "10" and "20" on the back.