300 Réis Countermark 'Crowned G.P.' over 320 Réis, Brazil

The crowned "G.P." countermark — standing for Governo Português — was applied in 1887 to restamp Brazilian 320 réis pieces for circulation in the Azores, reducing their official face value to 300 réis in the process. Portugal's Atlantic island territories had chronic shortages of small coinage throughout the nineteenth century, and countermarking foreign silver was a recurring administrative solution rather than an exceptional one.

The Brazilian host coins were themselves already decades old by the time the punch was applied.