50 Pesos

The Confederación Argentina was a short-lived political entity — the rump state that existed after Buenos Aires seceded in 1852, before the two were reunified by force in 1861. Notes issued by its Tesorería General during these years circulated in genuinely contested political territory, and the Confederación's chronic fiscal weakness meant paper emissions were often backed by little more than optimism.

Domestic printing in this period was technically rudimentary by South American standards. Buenos Aires had access to better press infrastructure; Paraná, the Confederación's capital, did not. PS#230 surviving in any condition is notable — wartime-adjacent political instability, inflation, and the post-reunification currency reforms all conspired against survival of Confederate-era paper.