Porto 10 and 50 para in sheet. Description: Porto 10 and 50 para in sheet. Sheet 50 para with yellow stains on the reverse. Porto 10 and 50 para in sheet. Auction: Aukcija br. 48 - Filatelija i razglednice Catalog No: 886 Category: Kingdom of Yugoslavia Current offer is at 20EUR. In order to place your bid your offer needs to be at least 20EUR or higher. Please place your bid: Other items from the category: Kingdom of Yugoslavia 889 20 EUR ✉ 890 30 EUR ←1234