Ragusa
Republic 1/2 Tallero (1/2 Vizlin) 1731 AU53 NGC, KM-Unl., Dechant-Unl., CNI-VIb.224. An exceptionally rare date for this already highly challenging denomination, entirely unrecorded for the type by the Standard Catalog of World Coins, and reported in the Corpus Nummorum Italicorum from a single example, in the Rešetar Collection (unillustrated). Indeed, a quick survey of the certified populations across both NGC and PCGS reveal that this is the sole example yet graded, and the only specimen to have come to auction in recent decades. Visually, the coin maintains a charming argent tone that lightens to hints of gold in contained areas of the fields, the conspicuous adjustment marks common to the series present over both sides, though not obscuring the central details. For the sake of accuracy, we note some planchet irregularities around 12 o'clock, not to be confused with a mount removal. Clearly a target worthy of the utmost bidder consideration.
Ex. Numismatica Genevensis Auction 4 (December 2006, Lot 971)
https://coins.ha.com/itm/ragusa/ragusa-republic-1-2-tallero-1-2-vizlin-1731-au53-ngc-/a/3094-35050.s?type=CoinArchives3094
HID02906262019
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Estimate: 1500-2500 USD