EPSG_9920: "+proj=tmerc +lat_0=49 +lon_0=-2 +k=0.9996012717 +x_0=400000 +y_0=-100000 +ellps=airy +units=m +vunits=m +no_defs +type=crs" = '+proj=tmerc +lat_0=49 +lon_0=-2 +k=0.9996012717 +x_0=400000 +y_0=-100000 +ellps=airy +units=m +vunits=m +no_defs +type=crs'
OSGB36 / British National Grid + BI height
null
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61.01,-9.01,49.75,2.01