D3507 : Postbox, Cairncastle

taken 11 days ago, near to Carncastle and Milltown, Northern Ireland

This is 1 of 2 images, with title Postbox, Cairncastle in this square
Postbox, Cairncastle
Postbox, Cairncastle
Victorian wallbox (BT40 726) on the Drumnagreagh Road, Cairncastle.

There is also a cut bench mark on the wall to the left, levelled to 73.47 metres above MSL.
Victorian Postboxes

In the British Isles the first pillar post boxes were erected in Jersey in 1852. Roadside wall boxes first appeared in 1857 as a cheaper alternative to pillar boxes, especially in rural districts. In 1853 the first pillar box in Britain was installed at Botchergate, Carlisle. In 1856 Richard Redgrave of the Department of Science and Art designed an ornate pillar box for use in London and other large cities. In 1859 the design was improved, and this became the first National Standard pillar box. Green was adopted as the standard colour for the early Victorian post boxes. Between 1866 and 1879 the hexagonal Penfold post box became the standard design for pillar boxes and it was during this period that red was first adopted as the standard colour. The first boxes to be painted red were in London in July 1874, although it would be nearly 10 years before all the boxes had been repainted.

Postboxes, rest of Northern Ireland

A series of photographs showing some of the postboxes, in the rest of Northern Ireland, within postcodes BT16-94. LinkExternal link shows the postboxes within Belfast.

Bench Mark

Bench marks were historically used to record the height above sea level of a location as surveyed against the Mean Sea Level data (taken at Clarendon Dock, Belfast, for Northern Ireland data, Newlyn in Cornwall for data in Great Britain and Portmoor Pier, Malin Head, for data relating to the Republic of Ireland). They were used as part of a greater surveying network by the UK Ordnance Survey, Ordnance Survey Northern Ireland (OSNI) and the Ordnance Survey Ireland (OSI). If the exact height of one bench mark is known then the exact height of the next can be found by measuring the difference in heights, through a process of spirit levelling. In this way hundreds of thousands of bench marks were sited all around the UK & Ireland from the mid 19th to late 20th centuries. There are several distinct types of bench mark:

- Fundamental bench marks have been constructed at selected sites where foundations can be set on stable strata such as bedrock. Each FBM consists of a buried chamber with a brass bolt set in the top of a granite pillar. See NG8825 : Dornie fundamental bench mark for an example. FBMs were used in Ireland as well as GB but those in Ireland do not have any surface markers, nor are they marked on standard maps.
- Flush brackets consist of metal plates about 90 mm wide and 175 mm long. Each bracket has a unique serial number. They are most commonly found on most Triangulation Pillars, some churches or on other important civic buildings. See J3270 : Flush Bracket, Belfast for an example.
- Cut bench marks are the commonest form of mark. They consist of a horizontal bar cut into a wall or brickwork and are found just about anywhere. A broad arrow is cut immediately below the centre of the horizontal bar. See J3372 : Bench Mark, Belfast for an example. The horizontal mark may be replaced by or contain a bolt - see J1486 : Bench Mark, Antrim.
Other marks include:
- Projecting bench marks such as SD8072 : Projecting Bracket Benchmark on St Oswald's Tower
- Bolt bench marks such as SJ1888 : OSBM bolt on Hilbre Island
- Rivet bench marks such as J3978 : Bench Mark, Holywood
- Pivot bench marks such as SJ2661 : Pivot bench mark on Leeswood Bridge

Bench marks are commonly found on older buildings or other semi-permanent features such as stone bridges or walls. Due to updated mapping techniques and technological advances such as GPS, bench marks are no longer maintained. Many are still in existence and the markers will probably remain until they are eventually destroyed by redevelopment or erosion.

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D3507, 10 images   (more nearby search)
Photographer
  (find more nearby)
Date Taken
Saturday, 1 May, 2021   (more nearby)
Submitted
Sunday, 2 May, 2021
Geographical Context
Historic sites and artefacts  Village, Rural settlement  Communications 
Street Furniture (from Tags)
Postbox 
Postbox (from Tags)
VR  Wall Box 
Primary Subject of Photo
Postbox 
Subject Location
Irish: geotagged! D 359 074 [100m precision]
WGS84: 54:53.7847N 5:52.9397W
Camera Location
Irish: geotagged! D 359 074
View Direction
West-southwest (about 247 degrees)
Clickable map
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Other Tags
Postbox  Postbox Wall Box  Victorian Postbox  Victorian Postboxes 

Click a tag, to view other nearby images.

Image Type (about): geograph  (Fourth Visitor for D3507)
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