Registered cover fr. with 40l./2l. grey-bistre (pos.141) with enormous margins perf. only at right canc. "ΠΕΙΡΑΙΕΥΣ*27.ΜΑΙΟΣ.18..". On reverse pair of 5l. Small Hermes Head with handwritten canc., arr. "HALENSEE*13.06.01". Very fine and very rare. (Hellas 156A+123i).