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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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SEARCHLIGHT BATTERY *
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A site in which one or more searchlights were positioned to locate enemy aircraft or surface vessels for the benefit of batteries and night fighter aircraft.
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FIELD *
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An area of land, often enclosed, used for cultivation or the grazing of livestock.
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AIRCRAFT *
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An aircraft, either whole or in part. Aircraft often survive as commemorative monuments, gate guardians or crash sites.
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ANTI AIRCRAFT BATTERY *
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A site containing one or more artillery pieces and/or rocket launchers for firing at enemy aircraft.
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BATTERY *
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A site where guns, mortars or searchlights are mounted. Use specific type where known.
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* Copyright of English Heritage (1999)
