10 Dollars - Elizabeth II 3rd Portrait - Kookaburra - Silver - High Relief

The Kookaburra series launched in 1990 as Perth Mint's answer to the Lunar and Britannia programs, designed from the outset to compete in the international bullion collector market. The high-relief variant of the 10-dollar issue was a deliberate premium tier above the standard strike, requiring slower press speeds and multiple strikes per planchet — a production constraint that kept mintages substantially lower than the regular bullion releases of the same year.

KM#351 spans two calendar years, reflecting Perth Mint's practice at the time of issuing coins dated to the next year before that year had actually begun.