Every one of the three coins in this constrained release set element an arrival to Benedetto Pistrucci's unique plan – with full fastener outskirt and engraving – which included on the principal Sovereigns

Conceived in Rome on 29 May 1784, Benedetto Pistrucci came to London in 1815 under the support of the Prince Regent. His notoriety for being a pearl etcher of exceptional capacity had gone before him and,