NMGW-AE3574: Possible Late Iron Age to early Roman copper alloy looped toggle of 1st century BC to 1st century AD date

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TOGGLE

Unique ID: NMGW-AE3574

Object type certainty: Certain
Workflow status: Published Find published

Possible Late Iron Age to early Roman copper alloy looped toggle of 1st century BC to 1st century AD date
The cast toggle is of biconical form and is incomplete, missing the loop (with a length of 25.4mm and a weight of 18.7g). The terminal are sub-circular (17.8mm x 16.3mm and 16.2mm x 15.0mm). The smaller terminal has a very crudely incised cross and the other terminal has a prominent raised rib, probably a casting seam and corresponds to the seam along the midsection of the toggle. There is a single crude incised line perpendicular to the casting seam, possibly to define a cross. On the concave midsection, at the point of smallest diameter (of 6.5mm) is a stub (5.1mm long, 4.0mm thick and 2.8mm high), probably from the missing loop. If from a damaged loop, there is only a single stub, suggesting the loop sprung from a narrow base, rather than arcing between two attachments, as is more common on Iron Age and Romano-British toggles. The concave midsection has irregular facets, probably from the mould. No applied decoration is evident on the midsection. The surface is corroded and has a dark-grey lustre.
Surface metallurgical analysis was attempted using a portable X-ray fluorescence spectrometer. The results show that toggle is composed of a lead-tin alloy.

Notes:

The object is of similar form to Later Iron Age - Romano-British copper alloy toggles, although this example is comparatively crude and would also be unusual in both its metallurgical composition and single loop attachment. Looped toggles can be broadly paralleled with an example recovered from Camerton, Somerset (Jackson, 1990, pp 40, no. 87) . Jackson (ibid) sees the function of these toggles as similar to button-and-loop fasteners and allies them to Wild's Class I fasteners.

Subsequent actions

Subsequent action after recording: Returned to finder

Chronology

Broad period: IRON AGE
Subperiod from: Late
Period from: IRON AGE
Subperiod to: Early
Period to: ROMAN

Dimensions and weight

Quantity: 1
Length: 25.4 mm
Weight: 18.7 g

Personal details

Found by: This information is restricted for your login.
Recorded by: Ms Eirini Anagnostou
Identified by: Mr Mark Lodwick

Other reference numbers

Other reference: NMWPA 2016.47.3

Materials and construction

Primary material: Copper alloy
Manufacture method: Cast
Completeness: Incomplete

Spatial metadata

Region: Wales (European Region)
County or Unitary authority: Pembrokeshire (Unitary Authority)
District: Pembrokeshire (Unitary Authority)
Parish or ward: St. David's and the Cathedral Close (Community)

Spatial coordinates

4 Figure: SM7327
Four figure Latitude: 51.89519512
Four figure longitude: -5.30064717
1:25K map: SM7327
1:10K map: SM72NW
Grid reference source: From a paper map
Unmasked grid reference accurate to a 10 metre square.

References cited

No references cited so far.

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Audit data

Recording Institution: NMGW
Created: About one year ago
Updated: 4 months ago

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