Transformation of coordinates at 1m level of accuracy.
Parameter values taken from OSGB 1936 / British National Grid to ETRS89 (1) (code 1036) assuming that ETRS89 is coincident with WGS 84 within the accuracy of the transformation. Replaced by OSGB 1936 / British National Grid to WGS 84 (2) (code 15956).
Ordnance Survey National Transformation
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