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Unique ID: CORN-75AA73
Object type certainty: Certain
Workflow status: Awaiting validation
Silver half vintem (10 reis) of Joao III of Portugal (1502-1557) minted between 1538 and 1557. The combination of obverse (four small shields in a cruciform pattern surrounding a central shield) and the reverse (a cross fleuretty) and the first four letters of the name IOAN[...] appear on the coins of John III of Portugal. Although the same designs of obverse and reverse appear on the coins of his predecessor, John II of Portugal, John II's name appears spelt as IOHANNES, whereas John III's name appears as IOANES, which appears to match the legend on this coin. The diameter of this coin matches that of a half vintem (16 mm). The coin is very worn, slightly bent and perforated in the centre. The parallels are taken from coins illustrated in Numista.
Subsequent action after recording: Returned to finder
Thickness: 0.3 mm
Weight: 0.65 g
Diameter: 16 mm
Date(s) of discovery: Sunday 24th June 2018 - Sunday 24th June 2018
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Denomination: Meio real or meio vintém
Ruler/issuer: John III of Portugal
Type: silver coin the post-medieval Kings of Portugal
Obverse description: cruciform of five shields with five pellets in each
Obverse inscription: +IOAN[ES.3.R.PO]RT
Reverse description: cross fleuretty
Reverse inscription: illegible and missing
Initial mark: cross pattee
Degree of wear: Very worn: fair
4 Figure: SW9474
Four figure Latitude: 50.52942171
Four figure longitude: -4.90795547
1:25K map: SW9474
1:10K map: SW94SW
Grid reference source: GPS (from the finder)
Unmasked grid reference accurate to a 1 metre square.
No references cited so far.