Registered cover fr.2x20pa/4κοπ.+1pi/10κοπ. Russian ovpt."Smyrne" canc.Cyrillic "Ρ.Ο.Π.ηΤ.-CMNPHA*17-III-1910".The 20pa/4kop. in GUTTER pair. Trans. Russian Ρ.Ο.Π.ηΤ. Constantinople, arr. "BORNA*4.4.10" (Germany). Fine Russian registered label.