2 Sovereigns - Elizabeth II 4th portrait, modified reverse

The "modified reverse" designation refers to a subtle but cataloged alteration to the St. George and dragon die introduced during this run, distinguishing these pieces from the otherwise identical Spink SD6 type. The change was made quietly, without public announcement, which is characteristic of Royal Mint production adjustments in this period.

Double sovereigns saw renewed collector interest after 2008 as gold bullion demand spiked globally, pushing the Royal Mint to sustain annual proof and bullion outputs through 2015 at volumes higher than the preceding decade.