Porto, black number 1,2,6,12 heller. Description: Porto, black number 1,2,6,12 heller. Described in HFS No. 2 page 119/123, photo certificate Bilandžić. Porto, black number 1,2,6,12 heller. Auction: Aukcija br. 54 - Filatelija i razglednice Catalog No: 170 Category: SHS Croatia Quality: * Current offer is at 30EUR. In order to place your bid your offer needs to be at least 35EUR 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