BRAZIL. 960 Reis, 1818-R. Rio Mint. Joao, Prince Regent. PCGS AU-55 Gold Shield.KM-307.3; LDMB-P428; Gomes-JP.29.21. Struck over a Chile 1817-FD volcano peso, a SCARCE host coin. Lustrous, a little weak in the centers leaving much of the undertype clear and unmistakable. Lovely old envelope tone displaying an attractive blue sheen. With old collectors envelope.