SLOVENIA

Slovenian Littoral, Triest B, Istria

,28a (2), 28 (2),Pola Provisional Issue. 1,50 Lira on 75 cent. value, "Tamburino". Four stamps afixed to a cover and cancelled Pola (9.6.45). Two stamps have inverted overprint (!). An address was written and recommandation label affixed, but probably not mailed. This stamp with inverted overprint is very rare !