In 2018, to celebrate Four Generations of Royalty, the Royal Mint released a Limited Issue Four Generations of Royalty £25 Twenty Five Pound Gold Proof Coin struck in solid 999.9 Gold weighing one-quarter of an ounce of pure Gold.
The reverse designed by Timothy Noad features the four initials of the current Four Generations of Royalty and represents the heritage of the House of Windsor while the obverse depicts the Fifth Portrait of Her Majesty Queen Elizabeth II designed by Jody Clark.
These legal tender coins have been struck to proof quality using specially prepared dies and highly polished blanks.