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Projection Shift Grid Files Download projection shift grid files for use in your field or office software OSTN02.sgf(OSTN02.sgf - 13703 KB)United Kingdom Ordnance Survey National Grid Transformation (OSTN02) shift grid file
OSTN97.sgf(OSTN97.sgf - 15346 KB)United Kingdom Ordnance Survey National Grid Transformation (OSTN97) shift grid file
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