1890 - Overprinted parcel stamps, C.mi2 on 50c carmine with inverted overprint, used in "GENOVA FERROVIA 7 3 - 91". Slightly defective stamp, nonetheless great rarity. One of the very few copies known. Ex Seregni. Sign. Em.Diena, Cert. Bottacchi (good conditions), E.Diena (Perfect) (Sassone 52a - € 90.000)
