In 1925, the Spanish government was actively searching for a replacement for the troublesome copper-nickel 25 céntimos coinage, and several competing metal compositions were tested simultaneously. This magnetic nickel pattern was part of that evaluation process under Primo de Rivera's dictatorship, which had taken a particular interest in rationalizing the nation's fractional coinage. Pure nickel of this kind was not adopted — Spain ultimately continued with copper-nickel for the circulating type.
In 1925, the Spanish government was actively searching for a replacement for the troublesome copper-nickel 25 céntimos coinage, and several competing metal compositions were tested simultaneously. This magnetic nickel pattern was part of that evaluation process under Primo de Rivera's dictatorship, which had taken a particular interest in rationalizing the nation's fractional coinage. Pure nickel of this kind was not adopted — Spain ultimately continued with copper-nickel for the circulating type.