10 Dollars - Duke Travis I

Westarctica is a micronation founded in 2001 by Travis McHenry, who claimed sovereignty over the unclaimed portion of Antarctica not covered by the Antarctic Treaty's territorial assertions — specifically Marie Byrd Land and the Ross Dependency shelf. The X# reference prefix indicates this is cataloged in the Unusual World Coins supplement rather than the main Krause Standard Catalog, reflecting its non-governmental issuing authority. McHenry styled himself Grand Duke Travis I, and this coin was among the earliest physical artifacts produced to assert that claim.