10 Dollars - Charles III New York/New Jersey

This micro-gold issue belongs to a well-established commercial series in which the Solomon Islands lending authority produces small-denomination bullion pieces for the numismatic market — the jurisdiction chosen for its cooperative monetary arrangements rather than any geographic connection to the subject matter. At 0.155 g, these are among the smallest gold coins in regular production anywhere, a format pioneered in the early 2010s as mints competed for entry-level bullion buyers.