2 Dollars 50 Cents - Charles III Bolesław the Brave

Bolesław I earned his epithet "the Brave" partly through his audacious 1000 AD meeting with Holy Roman Emperor Otto III at Gniezno, where Otto reportedly placed his own imperial diadem on Bolesław's head — a gesture whose political implications neither side fully agreed on afterward. He became the first crowned King of Poland in 1025, dying just a few weeks after the coronation.

Niue has issued gold fractionals in this format under licensing arrangements that leverage its sovereignty as a Cook Islands-associated territory. The 0.5g specification places this firmly in the bullion gift segment rather than numismatic circulation.