Opening of the Vasco da Gama Bridge
This coin commemorated the opening of the Vasco da Gama Bridge, the second bridge to cross the Tagus River in Lisbon.
The bridge was opened to traffic on 29 March 1998, 18 months after construction first began, just in time for Expo 98, the World's Fair that celebrated the 500th anniversary of Vasco da Gama's discovery a sea route from Europe to India.
Diameter: 30 mm
Metal: .925 silver
Weight: 14 grams