Full front part of registered cover, "CONSULAT IMPERIAL DE PERSE A ATHENES & AU PIREE", fr. with 2x5l. pale green perf. + 20l/25l. blue right marginal copy with "ΠΤΑ 20" due to shifted surcharge, canc. "ΠΕΙΡΑΙΕΥΣ*27.ΜΑΡΤ.18..". VF and rare. (Hellas 133n+129e).