CORN-255032: barrel tap key (plan)

Rights Holder: Royal Institution of Cornwall
CC License:


Rights Holder: Royal Institution of Cornwall
CC License:

Image use policy

Our images can be used under a CC BY attribution licence (unless stated otherwise).

TAP KEY

Unique ID: CORN-255032

Object type certainty: Certain
Workflow status: Awaiting validation Find awaiting validation

An incomplete cast copper-alloy barrel tap key with a bifurcate handle, which is lozenge-shaped in section, and has an arched bifid terminal on each branch. The key is circular in section. The top 9 mm of the key is parallel-sided, with a slight protruding ridge at the top and two incised lines encircling it at 5 mm intervals above and below. Between the upper two lines, on one side, is a round hole 2 mm in diameter, and between the lower lines there is another round hole, 3 mm in diameter, which are both filled with corroded iron, suggesting that the upper one is a rivet and the lower one was once an iron 'stop' at this point. Below this the key is tapered to enable it to be fitted into the tap; half-way down the tapered section it is pierced through by a drilled figure-of-eight shaped hole, 10 mm high and 5 mm wide through which liquid would flow to the (missing) spout when the key was rotated.

The total length of the key is 66 mm; the handle is 28 mm long, 30 mm wide and 5 mm thick; the barrel is 38 mm long and 13 mm in diameter at the top, tapering to 10 mm at the lower end, 39.25 g in weight.

Read (1988) illustrates a simpler bifid terminal from a barrel tap key on page 158, no.1066, which is dated from the 17th century.

Bailey (1993) illustrates a barrel tap key with a similar bifid terminal on the handle on page 63, no.19, which is dated from the 18th to the mid 19th century.

See record CORN-68BC51 for a similar key still intact in the barrel tap.

Subsequent actions

Subsequent action after recording: Returned to finder

Chronology

Broad period: POST MEDIEVAL
Subperiod from: Middle
Period from: POST MEDIEVAL
Subperiod to: Middle
Period to: POST MEDIEVAL
Date from: Circa AD 1600
Date to: Circa AD 1800

Dimensions and weight

Quantity: 1
Length: 66 mm
Width: 30 mm
Thickness: 5 mm
Weight: 39.25 g
Diameter: 13 mm

Discovery dates

Date(s) of discovery: Saturday 12th May 2018 - Saturday 12th May 2018

Personal details

Found by: This information is restricted for your login.
Recorded by: Ms Anna Tyacke
Identified by: Ms Anna Tyacke

Materials and construction

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

Spatial metadata

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

Spatial coordinates

4 Figure: SW6728
Four figure Latitude: 50.10627548
Four figure longitude: -5.259892
1:25K map: SW6728
1:10K map: SW68NE
Grid reference source: GPS (from the finder)
Unmasked grid reference accurate to a 1 metre square.

Discovery metadata

Method of discovery: Metal detector
General landuse: Grassland, Heathland
Specific landuse: Disturbed

References cited

Similar objects

Find number: CORN-68BC51
Object type: TAP
Broadperiod: POST MEDIEVAL
Incomplete cast copper alloy barrel tap with an unremovable key with a bifurcate handle, that is lozenge-shaped in section, and has an arched…
Workflow: Awaiting validationFind awaiting validation

Find number: CORN-2C2DD5
Object type: TAP
Broadperiod: POST MEDIEVAL
Incomplete cast copper alloy barrel tap, with a zoomorphic spout terminal and a wooden tap key with its terminal missing. The rest of the tap…
Workflow: Awaiting validationFind awaiting validation

Find number: CORN-E423FA
Object type: TAP
Broadperiod: POST MEDIEVAL
Cast copper alloy barrel tap with a T-shaped tap key, with arms that are circular in section, which is slotted into the cylindrical socket or…
Workflow: Awaiting validationFind awaiting validation

Timeline of associated dates

Audit data

Recording Institution: CORN
Created: 6 months ago
Updated: 6 months ago

Other formats: this page is available as qrcode json xml geojson pdf rdf representations.