Letter sent from Zagreb to Ljubljana 17.09. 1920. Description: Letter sent from Zagreb to Ljubljana 17.09. 1920. Franked with stamps with perforation F.K. (Franjo Kiseljak). Rare, good quality. Letter sent from Zagreb to Ljubljana 17.09. 1920. Auction: Aukcija br. 54 - Filatelija i razglednice Catalog No: 149 Category: SHS Croatia Quality: ✉ Current offer is at 18EUR. In order to place your bid your offer needs to be at least 18EUR or higher. Please place your bid: Other items from the category: SHS Croatia ✉ 167 18 EUR * 168 16 EUR ** 169 70 EUR * 170 30 EUR ✉ 171 50 EUR 172 20 EUR ✉ 173 35 EUR 174 40 EUR **/* 175 40 EUR 176 30 EUR 177 30 EUR 178 140 EUR ←12345