Spain
Isabel II copper Specimen Pattern 25 Centimos 1854 SP63 Brown PCGS, Madrid mint, cf. KM615.2, Cal-184. Plain edge. An extremely rare prototype lavishly and carefully struck-up boasting cobalt silhouettes limited only by grading defining instances of handling wisps.
https://coins.ha.com/itm/spain/spain-isabel-ii-copper-specimen-pattern-25-centimos-1854-sp63-brown-pcgs-/a/3098-34402.s?type=DA-DMC-CoinArchives-WorldCoins-3098-01182022
HID02906262019
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Estimate: 800-1200 USD