1921/40 - Libia: Pittorica 10L sideways watermark and 5L without watermark, with 2L carmine and 75c orange, on insured letter for Lire 3.000, Air Mail from "TRIPOLI POSTA ERITREA 26.8.40" to Poggio Mirteto. Rarity in this field. Initials E.Diena, Cert. Colla (Sassone 32+43+104+163 - € 7.700+)
