- Produced by Tower Mint London and made available through the London Mint Office.
- 2026 commemorates 100 years since the birth of Queen Elizabeth II on 21st April 1926.
- The collection includes Half Crown, One Crown and Two Crown coins with the first Half Crown coin in the collection being supplied free of charge.
- The collection reveals the unseen effigies of Queen Elizabeth II by artist Raphael Maklouf, across several decades of her reign, from 1952 to 2022.
- The reverse of each coin features an unseen effigy of Queen Elizabeth II from each decade of her reign.
- The inscription around the top on the reverse of the coins, 'THE RDM MASTERPIECES', is featured, above the unseen effigies of Queen Elizabeth II.
- The inscription, 'THE UNSEEN EFFIGIES', is featured around the bottom, on the reverse of each coin.
- The signature initials 'RDM', of the artist Raphael Maklouf, are positioned on the reverse of the coins at the base of the neck, on the unseen effigies of Queen Elizabeth II.
- The obverse of the coins illustrate the uncrowned portrait of King Charles III, created by Raphael Maklouf.
- The Latin inscription around the obverse of the coins, 'CHARLES III · D · G · REX · F · D · GIBRALTAR ·', an abbreviation from 'CHARLES III DEI GRATIA REX FIDEI DEFENSOR GIBRALTAR', translates as 'Charles III, by the Grace of God, King, Defender of the Faith, Gibraltar', followed by the year '2026', in English.
- The monetary value for each coin is displayed around the bottom, on the reverse of each coin.
- The initials 'RDM', of the artist Raphael Maklouf, are positioned on the obverse of the coins at the base of the neck, on the uncrowned portrait King Charles III.
- Limited release.
