Rights Holder: Royal Institution of Cornwall
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BROOCH
Unique ID: CORN-47A591
Object type certainty: Certain
Workflow
status: Awaiting validation 
Incomplete Roman cast copper alloy Cornish Type 31 aesica-variant brooch with hinged pin attachment and enamel inlay. All that remains of the brooch is the cross bar, one end of which is broken, and the upper section of the cruciform bow, still with its bossed rivet intact at the head. The tubular wings still hold the copper alloy axial bar, which can be seen in section where it is broken within the notch at the back of the head. This recess would have accommodated the hinge and pin which are now missing. The front of the wings or cross bar is decorated with a row of impressed triangles which still have traces of red enamel inlay. Between the wings the head has a prominent domed rivet that is circular in plan and plano-convex in profile, just below the notch for the pin. On either side of the bossed rivet is a raised moulded ridge that descends from the wing and curves inward towards the tapering bow, that would then have expanded to form a cruciform shape with a bossed rivet in the centre and at each terminal. See CORN-DEC722 from St Hilary parish to see a complete example of the Cornish Type 31 brooch with the same pattern on the wings and GLO-279152 for the same type of brooch with more detailed and intact enamel, but in a different pattern.
These brooches, along with more recent discoveries from Cornwall, have been identified by Justine Bayley as Cornish Type 31 and are published in Tyacke, Bayley and Butcher (2011). The St Hilary brooch recorded in CORN-DEC722 is illustrated on page 142, fig.11.1, no.3, and dated from the mid 1st to the 2nd century AD.
Class:
Aesica variant
Sub class: Cornish Type 31
Subsequent actions
Subsequent action after recording: Returned to finder
Chronology
Broad period: ROMAN
Subperiod from: Early
Period from: ROMAN
Subperiod to: Middle
Period to: ROMAN
Date from: Circa AD 50
Date to: Circa AD 200
Dimensions and weight
Quantity: 1
Length: 17.5 mm
Height: 12 mm
Width: 48 mm
Thickness: 8 mm
Weight: 17.4 g
Discovery dates
Date(s) of discovery: Sunday 1st May 2016 - Monday 30th May 2016
Personal details
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Materials and construction
Primary material: Copper alloy
Secondary material: Enamel
Manufacture method: Cast
Completeness: Fragment
Surface Treatment: Inlaid with enamel
Spatial metadata
Region: South West (European Region)County or Unitary authority: Cornwall (Unitary Authority)
District: Cornwall (Unitary Authority)
Parish or ward: Hayle (Civil Parish)
Spatial coordinates
4 Figure: SW5638
Four figure Latitude: 50.19163314
Four figure longitude: -5.41984988
1:25K map: SW5638
1:10K map: SW58SE
Grid reference source: GPS (from the finder)
Unmasked grid reference accurate to a 1 metre square.
References cited
| Author | Publication Year | Title | Publication Place | Publisher | Pages | Reference | |
|---|---|---|---|---|---|---|---|
| Tyacke ,A., Bayley, J. and Butcher, S. | 2011 | Romano-British Brooches - of Cornish Origin? | Oxford | Archaeopress for British Archaeological Reports | 142, fig.11.1 | no.3 |
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Timeline of associated dates
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