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The British Museum

IOW-DF6987: Post-Medieval Coin: Portuguese Half-tostao of John III

Rights Holder: The Portable Antiquities Scheme
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Unique ID: IOW-DF6987

Object type certainty: Certain
Workflow status: Awaiting validation Find awaiting validation

A worn and possibly clipped Portuguese post-Medieval silver half-tostao of Joāo III (1521-1557), minted at Lisbon, c. 1555-1557.

Obverse: [IOANNES] III REX·PORT[VG], Crowned shield.

Reverse: [IN H]OC SIGN[O VINCES], Cross fleury.

Diameter: 27.6mm. Weight: 6.12g.

Subsequent actions

Current location of find: Finder
Subsequent action after recording: Returned to finder


Broad period: POST MEDIEVAL
Subperiod from: Early
Period from: POST MEDIEVAL
Subperiod to: Early
Date from: Circa AD 1555
Date to: Circa AD 1557

Dimensions and weight

Quantity: 1
Weight: 6.12 g
Diameter: 27.6 mm

Discovery dates

Date(s) of discovery: Sunday 16th April 2017 - Sunday 16th April 2017

Personal details

This information is restricted for your access level.

Other reference numbers

Other reference: IOW2017-7-92

Materials and construction

Primary material: Silver
Manufacture method: Struck or hammered
Completeness: Complete

Coin data (numismatics)

Denomination: Tostão
Ruler/issuer: John III of Portugal
Type: silver coin the post-medieval Kings of Portugal
Obverse description: Crowned shield
Obverse inscription: [IOANNES] III REX•PORT[VG]
Reverse description: Cross fleury
Reverse inscription: [IN H]OC SIGN[O VINCES]
Die axis measurement: 12 o'clock
Degree of wear: Extremely worn: poor

Coin references

No coin references available.

Spatial metadata

Region: South East (European Region)
County or Unitary authority: Isle of Wight (Unitary Authority)
District: Isle of Wight (Unitary Authority)
To be known as: Isle of Wight

Spatial coordinates

Grid reference source: GPS (from the finder)
Unmasked grid reference accurate to a 1 metre square.

Discovery metadata

Method of discovery: Metal detector
Discovery circumstances: Club rally
Current location: Finder
General landuse: Cultivated land
Specific landuse: Operations to a depth greater than 0.25m

References cited

No references cited so far.

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Timeline of associated dates

Audit data

Recording Institution: IOW
Created: 5 years ago
Updated: 5 years ago

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