Brazil 1757-B 320 reis
This silver 320 réis was minted at the Bahia mint during 1757-58. This coin would have traded in the 18th century as one-third of a Spanish dollar. The 320 réis is half the size of the more common 640 réis. In 1768 the weight of this denomination was lowered from 9.66 grams to 8.90 grams. Earlier silver 320 réis are known, starting in 1695. Many are priced very low in the SCWC but remain very hard to find. The first specimen was lot 20393 in Heritage sale 3009 (Chicago, April 2010), where it sold for $402.50. The catalog description noted, "Jose I 320 Reis 1757B, toned Fine, evenly worn details, scarce date." The second specimen was part of lot 23307 in Heritage sale 3020 (Long Beach, September 2012), where it sold for $1,880. The catalog description noted, "Collection of Silver 320 Reis, a very nice selection, primarily in Fine to VF quality. This group covers a wide range of dates, and we definitely suggest careful viewing if you want to be competitive." The similar KM 169.1 and 169.2 were struck 1751-58 and is more available tho not common.
Recorded mintage: unknown.
Specification: 9.66 g, .917 fine silver, .284 troy oz ASW.
Catalog reference: KM 169.3, Russo 192.
- 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.
- 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.
- Tucker, Warren, and Scott Cordry, Heritage Signature Auction 3009: World Coins, Dallas, TX: Heritage Auction Galleries, 2010.
- Tucker, Warren, and Cris Bierrenbach, Heritage Signature Auction 3020: World Coins, Dallas, TX: Heritage Auction Galleries, 2012.