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OS Card
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Ordnance Survey Record Card. Before the 1970s the Ordnance Survey (OS) were responsible for recording archaeological monuments during mapping exercises. This helped the Ordnance Survey to decide which monuments to publish on maps. During these exercises the details of the monuments were written down on record cards. Copies of some of the cards are kept at the Warwickshire Sites and Monuments Record. The responsibility for recording archaeological monuments later passed to the Royal Commission on Ancient and Historic Monuments.
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SMR Card
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Sites and Monuments Record Card. The Warwickshire Sites and Monuments Record began to be developed during the 1970s. The details of individual archaeological sites and findspots were written on record cards. These record cards were used until the 1990s, when their details were entered on to a computerised system. The record cards are still kept at the office of the Warwickshire Sites and Monuments Record.
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Cropmark
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Cropmarks appear as light and dark marks in growing and ripening crops. These marks relate to differences in the soil below. For example, parched lines of grass may indicate stone walls. Crops that grow over stone features often ripen more quickly and are shorter than the surrounding crop. This is because there is less moisture in the soil where the wall lies.
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Aerial Photograph
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Aerial photographs are taken during an aerial survey, which involves looking at the ground from above. It is usually easier to see cropmarks and earthworks when they are viewed from above. Aerial photographs help archaeologists to record what they see and to identify new sites. There are two kinds of aerial photographs; oblique and vertical.
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SITE *
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Unclassifiable site with minimal information. Specify site type wherever possible.
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PARK *
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An enclosed piece of land, generally large in area, used for hunting, the cultivation of trees, for grazing sheep and cattle or visual enjoyment. Use more specific type where known.
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WELL *
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A shaft or pit dug in the ground over a supply of spring-water.
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ENCLOSURE *
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An area of land enclosed by a boundary ditch, bank, wall, palisade or other similar barrier. Use specific type where known.
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SUBRECTANGULAR ENCLOSURE *
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A monument consisting of an area enclosed by a ditch, bank, wall, palisade or similar barrier, where the barrier follows an almost rectangular course.
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* Copyright of English Heritage (1999)
