1/40oz Silver Britannia Coins

Explore our range of 1/40oz Silver Britannia Coins, featuring ultra-fractional issues from The Royal Mint’s iconic Britannia series. Struck in .999 fine silver and containing one-fortieth of a troy ounce of pure silver, these coins represent the smallest and most exclusive denomination within the Britannia range.

Each 1/40oz Britannia coin is struck to proof standard using specially prepared dies and highly polished blanks, delivering exceptional detail despite its extremely small size. These coins carry a legal tender face value of 5p and are typically issued as part of limited Royal Mint proof sets rather than standalone releases, making them highly sought after by advanced collectors.

Designs feature Britannia, the enduring symbol of British strength and maritime heritage, alongside the official portrait of the reigning monarch. Due to their ultra-fractional size, these coins require extremely precise minting techniques, and modern issues incorporate the same advanced Britannia design language seen across the wider series, including micro-detailing and refined engraving adapted to the smallest format.

1/40oz Silver Britannias are among the rarest modern UK silver coins, often issued in very low mintages and intended primarily for specialist fractional sets. Their scarcity and inclusion within full proof collections make them highly desirable among dedicated Britannia collectors.

Whether you are completing a full fractional Britannia proof set or searching for the smallest Royal Mint silver issues, discover our selection of 1/40oz Silver Britannia Coins at The London Coin Company .