75 Réis - João IV Countermarked 1/2 Tostão

正面描述	The obverse displays the Portuguese royal arms as they appear on the host coin, a hammered 1/2 Tostão of João IV: the quintas shield arrangement featuring five escutcheons each charged with five bezants (quinas), enclosed within a bordure of castles, all set within a beaded inner circle. A Latin legend surrounds the composition along the outer rim. A Type 4 Brazilian countermark, applied in 1663 by order of the colonial authorities, is struck over the host coin's field, validating its revalued circulation at 75 Réis.
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背面描述	The reverse of the host Portuguese 1/2 Tostão shows a large bold cross pattée occupying the central field, a characteristic design of the hammered coinage of the Portuguese Crown. The quadrants formed by the cross contain letters and numerals — likely the mintmark and denomination indicators — partially legible due to the irregular flan and the effects of wear. A beaded inner circle and a partial Latin circumscription are visible along the rim, consistent with standard Portuguese hammered silver coinage of the period.
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边缘	Plain
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