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BROOCH
Unique ID: NMS-51652C
Object type certainty: Certain
Workflow
status: Awaiting validation 
Almost-complete late Iron Age or early Roman copper-alloy Nauheim derivative brooch, with half of the spring, the pin and part of the catchplate missing. The bow is a maximum of 3.5mm wide and is biconvex in cross-section, the reverse being flatter than the front. It is undecorated, and tapers towards a pointed foot with the unperforated catchplate on the reverse. A stub of the return of the catchplate survives, and shows that it turned to the left (when viewed from the reverse). The very bottom of foot and catchplate is bent upwards and may be incomplete.
At the top of the bow, it tapers sharply into the spring, which turns forward and up into two coils on the right-hand side of the bow (when viewed from the reverse). There is then an internal chord, and the other half of the spring is broken halfway through the first coil. The centre of the spring is blocked with iron corrosion, perhaps from a separate axis bar. Surviving length, as folded, 38mm; original length perhaps c. 40-41mm. Surviving width across spring, 9mm. Weight 3.09g.
Very similar to Mackreth 2011, plate 8, no. 4346, which he classifies as a Nauheim Derivative 3.b3.
Class:
Nauheim derivative
Sub class: Mackreth ND 3.b3
Subsequent actions
Subsequent action after recording: Returned to finder
Chronology
Broad period: ROMAN
Subperiod from: Late
Period from: IRON AGE
Subperiod to: Early
Period to: ROMAN
Date from: Circa AD 10
Date to: Circa AD 100
Dimensions and weight
Quantity: 1
Length: 38 mm
Width: 9 mm
Weight: 3.09 g
Discovery dates
Date(s) of discovery: Wednesday 19th June 2019 - Wednesday 16th October 2019
Personal details
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Other reference numbers
SMR reference number: 32302
Other reference: AHS102019
Materials and construction
Primary material: Copper alloy
Secondary material: Iron
Completeness: Incomplete
Spatial metadata
Region: Eastern (European Region)County or Unitary authority: Norfolk (County)
District: South Norfolk (District)
Parish or ward: Shelton and Hardwick (Civil Parish)
Spatial coordinates
4 Figure: TM2191
Four figure Latitude: 52.47216885
Four figure longitude: 1.25246932
1:25K map: TM2191
1:10K map: TM29SW
Grid reference source: From finder
Unmasked grid reference accurate to a 10 metre square.
References cited
No references cited so far.
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Timeline of associated dates
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