Britannia Silver Proof Collection. The first year the Royal Mint issued proof sets of the Britannia. Commemorates "the tercentenary of the introduction of the Britannia silver hallmarking standard." 1997. Includes two pounds, one pound, fifty pence, and twenty pence in capsules in a hinged box, green leather outside, satin inside. Crowned bust of Elizabeth II right / Helmeted Britannia with a trident riding in a chariot pulled by two charging horses. PBS01 (£175). Frosted proofs. FDC. Box as new; includes the Royal Mint certificate.