"Whether you're trying to determine the different types of coins minted under the Kingdom of Portugal, or attempting to identify the images on the obverse and reverse of a 50 Escudos coin, among countless other efforts, this 2012 Coins of the World: Portugal download is a resource to turn to.
This electronic download gives you detailed descriptions, current values for multiple condition grades, and actual-size illustrations for everything from kingdom coinage to mint sets of Portuguese coins minted in the late 20th century, and before."