1 Dollar - Elizabeth II Castle Neuschwanstein

Neuschwanstein was commissioned by Ludwig II of Bavaria in 1869 as a deliberate retreat from political reality — Ludwig had been sidelined after Prussia's victory over Austria in 1866 reduced Bavaria to a subordinate ally. He spent so extravagantly on this and his other building projects that the Bavarian cabinet had him declared legally incompetent and deposed in June 1886. He died three days later under disputed circumstances.

The pop-up insert mechanism places this firmly in the novelty issues Cook Islands produced throughout this period under licensing arrangements — collectibles marketed internationally with no meaningful domestic circulation.