10 Dollars - Charles III Mrs. Tittlemouse

Part of a broader wave of micro-gold issues that flooded the market in the early 2020s, this piece rides on the Beatrix Potter licensing rights now held by Frederick Warne & Co. under Penguin Random House. Mrs. Tittlemouse first appeared in Potter's 1910 tale — one of her more obsessive-compulsive protagonists, a wood mouse who spends the story evicting uninvited guests from her burrow.

The Solomon Islands' role here is purely fiduciary. The one-tenth-gram format puts it at the lower boundary of what modern refiners can strike with acceptable detail.