Trial overprint of stamp for express mail. Description: Trial overprint of stamp for express mail. Block of four with imprint in black color, on white smooth cardboard paper. Rare. Excellent quality. Trial overprint of stamp for express mail. Auction: Aukcija br. 57 - Filatelija i razglednice Catalog No: 2034 Category: SHS Croatia Quality: (*) Current offer is at 90EUR. In order to place your bid your offer needs to be at least 90EUR or higher. Please place your bid: Other items from the category: SHS Croatia ✉ 2099 40 EUR ✉ 2100 30 EUR ✉ 2101 30 EUR ✉ 2102 30 EUR ✉ 2103 50 EUR ✉ 2104 30 EUR ✉ 2105 30 EUR ✉ 2106 90 EUR ✉ 2107 45 EUR ←456789