Brazil
João VI gold 6400 Reis 1819/8-R MS61 NGC, Rio de Janeiro mint, cf. KM328 (overdate not listed), LMB-588 (same), Bentes-435.03 (R2). Mintage: 9,227. An incredibly low-mintage date from this only 4-year series (not counting the unique 1821 in the Museu Histórico Nacional), and made of even greater desirability through the presence of this apparently incredibly elusive overdate--apparently missing as such from the RLM and Santa Cruz Collections, as well as being unrecorded by Prober, the Standard Catalog, and Livro das Moedas do Brasil; lot 730 in Sotheby's May 1996 sale claimed to be this overdate, but does not appear to have been from the plates. Of additional interest to the specialist is that the offering appears to have been struck from a different reverse die compared to the others that have occurred at auction (see the aforementioned Sotheby's 1996 piece, the RLM and Santa Cruz specimens, and Spink Auction 52, June 1986, Lot 306), with the exception of Baldwin's Auction 53 (September 2007, Lot 2607). Struck to a notable sharpness that leaves no part of the design underexpressed, NGC records having graded one finer, of the standard 1819 date, at MS62.
https://coins.ha.com/itm/brazil/brazil-joao-vi-gold-6400-reis-1819-8-r-ms61-ngc-/a/3094-33145.s?type=CoinArchives3094
HID02906262019
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Estimate: 8000-12000 USD