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Royal Commission on the Ancient and Historical Monuments of Wales
25" Second Edition O.S. maps

Reference code(s): GB 1952 NAccp54

Held at: Royal Commission on the Ancient and Historical Monuments of Wales

Title: 25" Second Edition O.S. maps

Short Title: 25" Second Edition O.S. maps

Creation date(s): 1904-1943

Level of description: Collection level description on NMRW digital archive catalogue.

Extent: 10 upright cabinets of drawn master versions of 25" maps

Name of creator(s): Ordnance Survey

CONTEXT

Administrative/Biographical history: Produced by the Ordnance Survey, the maps are special, unpublished, revised states of OS 25" maps, re-drawn in black ink, over impressions of previous states, which are printed in blue ink. This alowed the cartographers to use the "blue" as a guide for features which had not changed, whilst drawing the revised state. The revised states could then be photographically copied, without the blue ink showing up. The maps are signed off by the Royal Engineer officers reponsible for overseeing the revisions at various stages. The maps were mainly produced for the Second Edition, from 1904-1908, but also cover revisions of various year editions up until 1943.

CONTENT

Scope and content/abstract: Early to mid 20th Century, Ordnance Survey, 25" drawn revision maps, covering nearly all of Wales, except for most of Montgomeryshire.

ACCESS AND USE

Language/scripts of material: English

System of arrangement: The maps are arranged by county in map number order.

Conditions governing access: Material is on full public access.

Conditions governing reproduction: The maps are out of copyright.

Finding aids: There is a written catalogue of the maps, and they can also be accessed by a database on the RCAHMW GIS system.

ARCHIVAL INFORMATION

Archival history: The maps were originally deposited with the Public Record Office by the Ordnance Survey, at an unknown date. In 1980 the PRO began to destroy the collection, until the NMRW stepped in to provide it with a home. The destruction resulted in the loss of nearly all those maps which covered the county of Montgomeryshire.

Immediate source of acquisition: Donated by the Public Record Office in 1980.

ALLIED MATERIALS

Existence and location of originals: Original material held by National Monuments Record for Wales.

Existence and location of copies: There are no other copies of the actual master maps, as drawn over an impression of the previous edition, but there will be published copies of the revised editions in various institutions.

DESCRIPTION NOTES

Archivist's note: Edwards, G.M.

Date(s) of descriptions: 28/10/03


INDEX ENTRIES
Subjects
Maps | Wales
Wales | Maps

Personal names

Corporate names
Great Britain. | Ordnance Survey | Mapping agency

Places
Wales ()

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