10 Dollars Pranke Island

Westarctica is a micronation claiming territory on the Antarctic mainland — specifically the portion of Marie Byrd Land unclaimed by any sovereign state due to a geographic gap in the 1959 Antarctic Treaty's territorial freeze. The Grand Duchy issued this bronze piece in 2011 as part of a series denominated for specific islands and land features within its claimed territory. Pranke Island lies within the Getz Ice Shelf region off the Hobbs Coast.

The X# prefix in standard references places this squarely in the "Unusual World Coins" category — neither fantasy piece nor official government issue, but occupying the ambiguous middle ground that serious collectors have increasingly treated as a legitimate thematic field.