![]() There is no restriction on the quantity of A4 sheets for Ordnance Survey maps published more than 50 years ago. A4 sheets from microfiche or film of pre-WWII large-scale county Series maps and National Grid sheets on aperture cards can be obtained instantly from self-service reader-printers. ![]() Up to 50 copies can be produced within 45 minutes. ![]() published less than 50 years ago, one A4 from each tile or sheet can be supplied without permission from the Ordnance Survey. For Ordnance Survey maps in copyright, i.e. The Maps Reading Room has a rapid copy service tailored to the needs of site researchers. Large-scale OS plans are also available for Northern Ireland and Eire. This includes post World War II National Grid paper sheets until the 1980s, microfilm aperture cards from the 1980s until 1997 and a digital data terminal from 1997 onwards. Resources available include a comprehensive collection of large-scale Ordnance Survey plans for Great Britain and Ireland dating back to the mid-19th century. are very welcome to visit the Maps Reading Room. Site researchers into the incidence of contaminated land etc. Ordnance Survey Resources for Environmental Site Researchers A comprehensive guide is available at Small Scale OS Maps. ![]() They were followed by the 1” to the mile survey which later became the 1:50,000 series, on national grid lines. They are generally made at 2” to the mile and cover England and Wales as far north as a line from Preston to Hull. The first small-scale maps are the Ordnance Surveyors Drawings between 17. Small Scale (2” to the mile, 1” to the mile or 1:50,000) Ordnance Survey To get a 1:2500 sheet number remove the 3rd and 6th digits, e.g. Type in a placename or postcode and a 2-letter, 6-digit grid reference will display eg. To determine the grid reference for the map you require use the county indexes available in the Maps Reading Room or go to the 'Get-a map' service on the the Ordnance Survey website. Since 1997 Ordnance Survey has supplied the Legal Deposit Libraries with digital mapping, namely LandLine® and then Ordnance Survey MasterMap ® data. From c.1946 until about 1980 the maps were produced on paper sheets between 1980 and until 1999 the maps were supplied on microfiche. The National Grid is a single grid system covering Great Britain. Since World War II, the modern equivalent of county series mapping has been the National Grid series at scales of 1:10,560/1:10,000 for rural and moorland areas, 1:2,500 and 1:1250 for urban areas (c.6 inches to 1 mile, c.25 inches to 1 mile and c.50 inches to 1 mile). List of 6”, 25” and 5' London editions with index maps.List of 25” County editions for England and Wales, excluding London.The advantage of microfiche/film is that it is easy to take copies from. These tables give information on the dates of each edition for a particular area, and also if they exist in microfiche/film. Guide to large scale Ordnance Survey maps of Ireland.Guide to large scale Ordnance Survey maps of Great Britain.These are organised by county then sheet number. All pre-World War II 1:2500 editions are now available on microfiche. Our most frequently consulted items are the large-scale plans, which began to be published in the mid-19th century as the 25 and 6 inches to the mile County Series (c.1:2500 and 1:10,560), and town plans at larger scales. ![]()
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