1 Dollar 20 Mark banknote

Liberia pegged its dollar to the US dollar at par from 1944, a relationship that held with varying degrees of credibility through decades of political instability. This oversized copper-nickel piece was issued during the post-civil war period when the Central Bank of Liberia was struggling to re-establish basic monetary infrastructure — commemorative and novelty issues like this one filled catalog pages while the domestic economy ran largely on US banknotes and informal exchange.