1000 Dobras Fish Hologram

São Tomé e Príncipe issued a wave of silver commemoratives through the 1990s targeting the collector market rather than domestic circulation — the archipelago's tiny economy and dollarization pressures made high-denomination silver pieces essentially sovereign revenue instruments. The hologram application on this piece reflects a brief fad among small-nation mints in the late 1990s, when holographic foil technology became cheap enough for limited-run numismatic contracts but novel enough to justify premium pricing to collectors.

KM#81 was produced under contract rather than at a domestic facility; São Tomé has no mint of its own.