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PLANO CONVEX KNIFE
Unique ID: NLM-A9232C
Object type certainty: Probably
Workflow
status: Awaiting validation 
Grey flint with recortified spot, probable plano-convex knife. A broad thin oval-ended flake with two broad flakes struck from its dorsal side and a positive hinged fracture on the ventral. This was followed by the hard-hammer removal of further flakes from the ventral surface. Invasive angled scalar retouch executed from the ventral aspect follows one end, and probably trimmed the opposite end to facilitate grip. Indentations at one end and the appearance of retouch executed from the dorsal aspect are both probably the result of fortuitous edge-on impacts rather than working. Suggested date: Late Neolithic, 2700-2350 BC.
Length: 42.8mm, Width: 31.7mm, Thickness: 6.5mm, Weight: 12.60gms
Subsequent actions
Subsequent action after recording: Returned to finder
Chronology
Broad period: NEOLITHIC
Subperiod from: Late
Period from: NEOLITHIC
Subperiod to: Late
Period to: NEOLITHIC
Date from: Circa 2700 BC
Date to: Circa 2350 BC
Dimensions and weight
Quantity: 1
Length: 42.8 mm
Width: 31.7 mm
Thickness: 6.5 mm
Weight: 12.6 g
Discovery dates
Date(s) of discovery: Tuesday 16th May 2017
Personal details
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Other reference numbers
Other reference: NLM36470
Materials and construction
Primary material: Flint
Manufacture method: Knapped/flaked
Completeness: Incomplete
Spatial metadata
Region: East Midlands (European Region)County or Unitary authority: Lincolnshire (County)
District: East Lindsey (District)
To be known as: Binbrook
Spatial coordinates
Grid reference source: GPS (from the finder)
Unmasked grid reference accurate to a 1 metre square.
References cited
No references cited so far.
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Timeline of associated dates
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