NMGW-F7414A: Roman bow brooch of Colchester-two-piece type

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BROOCH

Unique ID: NMGW-F7414A

Object type certainty: Certain
Workflow status: Awaiting validation

Roman copper alloy brooch of Colchester derivative, Harlow spring System of 1st century AD date.
The brooch is incomplete, missing the leg and foot (with a surviving length of 30.3mm, a surviving depth of 14.8mm and a weight of 10.4g). The incomplete spring remains in place around a copper alloy axis bar and is secured with a central, perforated lug and the chord tensioned with a lug at the head. The wings are truncated and are concave across their height (with a length of 23.5mm and a height of 6.4mm). The wings were enhanced with vertical grooves near the terminals, now corroded and worn. The upper bow is of rounded D-shaped section, with straight sides converging to the break (with a width of 7.0mm and a thickness of 7.9mm). The lug at the head continues as a short rib but no other decoration is evident on the bow. The bow appears to be getting deeper at the break, probably to incorporate the missing catch-plate. The surface is heavily-pitted with a dark-brown patina.

Class: Colchester derivative, Harlow spring System
Sub class: Mackreth (2011), CD Ha

Subsequent actions

Subsequent action after recording: Returned to finder

Chronology

Broad period: ROMAN
Period from: ROMAN
Period to: ROMAN
Date from: Circa AD 43
Date to: Circa AD 100

Dimensions and weight

Quantity: 1
Length: 30.3 mm
Weight: 10.4 g

Personal details

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Other reference numbers

Other reference: NMWPA 2014.28.1

Materials and construction

Primary material: Copper alloy
Manufacture method: Struck or hammered
Completeness: Incomplete

Spatial metadata

Region: South West (European Region)
County or Unitary authority: Wiltshire (Unitary Authority)
District: Wiltshire (Unitary Authority)
Parish or ward: Grittleton (Civil Parish)

Spatial coordinates

4 Figure: ST8580
Four figure Latitude: 51.51871764
Four figure longitude: -2.21757373
1:25K map: ST8580
1:10K map: ST88SE
Grid reference source: From finder
Unmasked grid reference accurate to a 100 metre square.

References cited

No references cited so far.

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Timeline of associated dates

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Audit data

Recording Institution: NMGW
Created: 9 years ago
Updated: 2 years ago

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