Brazil 1792 640 reis

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Heritage sale 3024, lot 23331
photo courtesy Heritage Auction Galleries

This specimen was lot 23331 in Heritage sale 3024 (Chicago, April 2013), where it sold for $2,232.50. The catalog description[1] noted, "Maria I 640 Reis 1792 (Lisbon), low crown variety, sharply struck XF with attractive gray toning, struck at Lisbon without mint mark. Very scarce date and grade." The type was struck in Lisbon 1787-95 and Rio 1791-1800. This is a rare date. The 1793 is reported with the same mintage yet is one eighth the price.

Recorded mintage: 3,484,000 from Rio (mintmark "R") plus 6,250 from Lisbon (no mintmark).

Specification: 17.76 g, .917 fine silver, .523 troy oz ASW.

Catalog reference: KM 222.1.


  • Amato, Claudio, Irlei S. Neves and Arnaldo Russo, Livro das Moedas do Brasil, 12a ed. Sao Paulo, 2008.
  • Alberto Gomes and Francisco Antonio Magro, Moedas Portuguesas e do Território Que Hoje é Portugal: Catálogo das Moedas Cunhadas para o Continentes e Ilhas Adjacentes, para os Territórios do Ultramar e Grão-Mestres Portugueses da Ordem de Malta, 6ª Edição, Lisbon: Associação Numismática de Portugal, 2013.
  • Friedberg, Arthur L. and Ira S. Friedberg, Gold Coins of the World, From Ancient Times to the Present, 7th ed., Clifton, NJ: Coin and Currency Institute, 2003.
  • Krause, Chester L., and Colin R. Bruce II, Standard Catalog of World Coins: Spain, Portugal and the New World, Iola, WI: Krause Publications, 2002.
  • Pimentel, Alvaro Mendes, Catálogo de Moedas Brasileiras de 1643 a 1962, 9a Ed., Rio de Janeiro, 1962.
  • [1]Bierrenbach, Cristiano, Warren Tucker and David Michaels, Heritage World and Ancient Coins Auction 3024, featuring the Kairos and Elizabeth McPhall Charters Collections, Dallas: Heritage Auction Galleries, 2013.

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