Portugal 1000 Escudos Silver Coin 1999 EXPO ’98 Commemorative
Coin/Bullion · Imprensa Nacional Casa da Moeda (INCM), the Portuguese Mint founded in the 13th century, located in Lisbon.
Pattern: Commemorative Issue: Expo '98 Lisbon World Exposition series.

Type
Coin/Bullion
Maker
Imprensa Nacional Casa da Moeda (INCM), the Portuguese Mint founded in the 13th century, located in Lisbon.
Material
0.925 Sterling Silver; contains 28.0 grams of silver (approx. 0.8327 troy oz ASW).
Dimensions
Diameter: 40 mm; Weight: 28.0 grams; Thickness: approx. 2.7 mm.
Description
This large-format sterling silver coin commemorates the 1998 Lisbon World Exposition (Expo '98). The obverse displays the Portuguese Republic's shield while the reverse typically celebrates maritime themes, honoring Portugal's legacy of exploration. Its high silver content and commemorative nature make it a staple for both bullion investors and numismatists.
Key Features
Denomination of 1000 Escudos, sterling .925 silver purity, large 40mm diameter, and specific 'Expo 98' thematic engraving.
Material & Composition
0.925 Sterling Silver; contains 28.0 grams of silver (approx. 0.8327 troy oz ASW).
Finish & Decoration
Uncirculated/Proof-like finish with die-struck relief. Features the Portuguese Coat of Arms, stylized oceanic motifs, and the face value denomination.
Hallmarks & Stamps
Stamped with 'REPUBLICA PORTUGUESA', face value '1.000 ESCUDOS', and the INCM mint mark.
Construction Details
Machine-struck on a prepared sterling silver planchet using high-pressure coinage dies.
Functional Features
Milled/reeded edge to prevent shaving of precious metal; legal tender status at time of issue.
Handle & Grip Details
Not applicable; standard round coin format.
Craftsmanship Details
Precision die-striking with high-relief details characteristic of modern state-run mints; excellent symmetry and clean edge reeding.
Authentication Indicators
Weight (28g) and diameter (40mm) consistency; presence of official INCM mint mark; crispness of the '1.000 ESCUDOS' lettering.
Origin & Manufacturing
Lisbon, Portugal; produced by the National Mint following centuries of Portuguese numismatic tradition.
Era & Period
Late 20th Century (Post-Modern/Contemporary); minted 1999 following the 1998 Lisbon World Exposition.
Age Estimate
Dated 1999; approximately 25 years old.
Cultural Significance
Represents Portugal's transition into the Eurozone (Escudo was replaced in 2002) and reflects their national pride in maritime history.
Condition Notes
Very Good to Excellent. Appears to have light surface abrasions (bag marks) consistent with uncirculated coins that have been handled; moderate tarnish visible in fields.
Value Estimate
$25.00 - $45.00 USD, primarily driven by silver spot price plus a small numismatic premium.
Care & Maintenance
Store in a PVC-free plastic capsule to prevent further oxidation. Do not clean with abrasives, as this destroys numismatic value. Use cotton gloves to avoid fingerprints.
Similar Pieces
1998 Expo '98 Silver 500 Escudos; other Portuguese commemorative coins from the 'Discoveries' series (1987-2000).
Interesting Facts
Expo '98 was the last world fair of the 20th century, themed 'The Oceans, a Heritage for the Future,' celebrating the 500th anniversary of Vasco da Gama's arrival in India.