1 oz (31.10 g) silver coin Britannia King Charles III, Great Britain 2023

The coin's reverse side still features the lady Britannia, but now has four new additional design elements for added security. These are a special effect background to mimic waves, additional lines on Britannia's shield, Latin text around an inner ring of the coin, and a new holographic spot which changes between a trident and padlock depending on the coin's angle.