PF69 UCAM | Elizabeth II (1952 -), gold proof Two Pounds, 2003, struck for the 50th Anniversary of the discovery of the structure of DNA, crowned head right, IRB initials below for designer Ian Rank-Broadley, Latin legend surrounding, ELIZABETH II. DEI. GRA. REG. FID. DEF. 2003., rev. design by John Mills depicting the spiraling double helix structure of DNA with the inscription 'DNA DOUBLE HELIX' and the dates '1953' and '2003' separated by 'TWO POUNDS', with edge inscription 'DEOXYRIBONUCLEIC ACID', 15.97g (S.K16). As struck, accompanied by original Royal Mint green leatherette box with certificate of authenticity, graded by NGC as PF69 Ultra Cameo.

NGC Certification 6133330-017.

1500 coins issued.

Estimate: £ 600 - 800