For the 2016, 50th Anniversary of the Introduction of Decimal Currency issue, this 'Imperforate stamps’ combination of the 1964 Pre-decimal Birds and their 1966 Decimal counterparts, in large Miniature Sheet format, was released in a limited edition booklet. It reflects upon the post office initiative in 1966 to assist the general pubic in familiarising them with the conversion rates from ‘Pounds and Pence’ to ‘Dollars and Cents’ by re-releasing five of the 1964/5 Pre-decimal Bird Definitive stamps with their equivalent Decimal denominations. In tandem, the Pre-decimal Navigator stamps were also re-issued with the new Decimal denominations.
