Registered cover fr. with 5x2l bistre (strip of 4 and single) and 40l/2l grey-bistre 1900 LHH surcharges, canc. "ΠΕΙΡΑΙΕΥΣ*2.ΑΠ.18..", arr. "HALENSEE*20.4.01", Germany. Very fine and rare. (Hellas 122+156a).