Created by renowned numismatist Alberto Gomes, is the definitive encyclopedia of Portuguese currency. It covers centuries of coinage, spanning from the founding of the Kingdom of Portugal to the modern Euro era. Why Collectors Rely on It:

: The Numisma frequently auctions rare coins and reference materials.

Every coin in the gets a unique AG number (e.g., AG 33.01, AG 112.05). This is the Portuguese equivalent of the KM number (Krause-Mishler).