1/20oz Silver Britannia Coins

Explore our range of 1/20oz Silver Britannia Coins, featuring ultra-fractional issues from The Royal Mint’s iconic Britannia series. Struck in .999 fine silver and containing one-twentieth of a troy ounce of pure silver, these coins represent one of the smallest and most exclusive denominations within modern British silver coinage.

Each 1/20oz Britannia coin is struck to proof standard using specially prepared dies and polished blanks, delivering exceptional detail despite its extremely small size. These coins are typically issued as part of limited Royal Mint proof sets rather than standalone releases, making them highly sought after by specialist collectors completing full fractional Britannia collections.

Designs feature Britannia, the enduring symbol of British strength and maritime heritage, alongside the official portrait of the reigning monarch. Modern issues incorporate advanced Royal Mint security features such as micro-text, latent imagery, surface animation and finely detailed engraving adapted to the ultra-small format.

The 1/20oz Silver Britannia plays a key role in the full fractional Britannia series, which spans from 1oz down to 1/40oz. Due to their limited availability and inclusion in complete sets, these coins are particularly rare on the secondary market and highly desirable among advanced collectors of Royal Mint proof issues.

Whether you are completing a full Britannia proof set or searching for ultra-fractional British silver coins, discover our selection of 1/20oz Silver Britannia Coins at The London Coin Company .