The Great British Treasure Hunt £5 Cupronickel 2026

The Great British Treasure Hunt £5 Cupronickel 2026 is a unique issue that combines the world of numismatics with an interactive adventure. Inspired by Sir Isaac Newton—an eminent scholar and former Master of the Mint—the coin serves both as a collector’s keepsake and as a symbolic element of a nationwide game full of puzzles and hidden clues.

The design and conceptual framing conceal layers of symbols and puzzles that reference the realms of science, light, and discoveries. The issue encourages intellectual play and the uncovering of secrets, combining the tradition of British minting with a modern form of storytelling.

The coin is struck in cupronickel, weighs 28.28 g, and has a diameter of 38.61 mm. Produced to Brilliant Uncirculated standard, it showcases crisp details and a satin finish characteristic of collector issues of this quality.

The coin’s denomination is 5 pounds, and the year of issue is 2026. Unlike the precious-metal versions, this issue has an unlimited mintage, making it more accessible to a broad range of collectors.

Obverse: designed by Martin Jennings, features the official portrait of the monarch, in keeping with the tradition of British coinage.

Reverse: by Christian Davies and Matt Dent, references the legacy of Isaac Newton, combining themes of science and discovery with the Treasure Hunt concept.

The Great British Treasure Hunt in the cupronickel Brilliant Uncirculated version is an offering for collectors who want to participate in the project in an accessible form, while retaining the official character of a British issue.