sentences:  This design continued to be used until after independence, and many reprints were made resulting in the stamps existing with various different paper types, perforations, watermarks and colour shades.Decimal currency postage due stamps inscribed "Taxxa Postali" (Maltese for "postal tax") were issued in 1973, and their design consisted of a numeral overlaid on a Maltese lace background.A final set of postage dues was issued in 1993, depicting a Neolithic spiral design from one of the megalithic temples found in the islands.