50 000 Guaranies with staircase metallic

The staircase metallic security feature — a stepped, optically variable stripe rather than a conventional flat thread or foil patch — was an uncommon specification for Latin American issues of this period, and its inclusion here reflects the Banco Central's response to a sustained counterfeiting problem that had plagued the high-denomination guaraní series through the mid-1990s. Thomas De La Rue held the contract for Paraguayan currency production across multiple decades, and this note falls within that long relationship.

Pick 218 is frequently encountered with handling wear along the vertical fold lines, a predictable consequence of how Paraguayan retailers bundled high-denomination notes in rubber-banded stacks.