BOUNDCRS[SOURCECRS[PROJCRS["ETRS89-FIN [EUREF-FIN] / ETRS-GK20FIN",BASEGEOGCRS["ETRS89-FIN [EUREF-FIN]",DATUM["EUREF-FIN",ELLIPSOID["GRS 1980",6378137,298.257222101,LENGTHUNIT["metre",1]],ANCHOREPOCH[1997]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",10690]],CONVERSION["Finland ETRS-GK20",METHOD["Transverse Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural origin",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude of natural origin",20,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale factor at natural origin",1,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False easting",500000,LENGTHUNIT["metre",1],ID["EPSG",8806]],PARAMETER["False northing",0,LENGTHUNIT["metre",1],ID["EPSG",8807]]],CS[Cartesian,2],AXIS["northing (N)",north,ORDER[1],LENGTHUNIT["metre",1]],AXIS["easting (E)",east,ORDER[2],LENGTHUNIT["metre",1]],USAGE[SCOPE["Cadastre, engineering survey, topographic mapping (large scale)."],AREA["Finland - onshore between 19°30'E and 20°30'E."],BBOX[59.92,19.5,60.48,20.5]],ID["EPSG",3127]]],TARGETCRS[GEOGCRS["GSB-IRF",DATUM["Generalstabens System Bornholm Intermediate Datum",ELLIPSOID["Danish 1876",6377019.27,300,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],CS[ellipsoidal,2],AXIS["geodetic latitude (Lat)",north,ORDER[1],ANGLEUNIT["degree",0.0174532925199433]],AXIS["geodetic longitude (Lon)",east,ORDER[2],ANGLEUNIT["degree",0.0174532925199433]],USAGE[SCOPE["Intermediate stage in transformations - not used otherwise."],AREA["Denmark - Bornholm onshore."],BBOX[54.94,14.59,55.38,15.25]],ID["EPSG",10260],REMARK["Artificial CRS created in 2022 to assist the transformation of coordinates between the historic Generalstabens System and ETRS89 through CT ETRS89 to GSB-IRF (1) (code 10263) used in conjunction with the GSB-reconstruction map projection (code 10261)."]]],ABRIDGEDTRANSFORMATION["ETRS89 to GSB-IRF (1)",METHOD["NTv2",ID["EPSG",9615]],PARAMETERFILE["Latitude and longitude difference file","gsb_2022.gsb"],USAGE[SCOPE["Intermediate stage in transformations - not used otherwise."],AREA["Denmark - Bornholm onshore."],BBOX[54.94,14.59,55.38,15.25]],ID["EPSG",10263],REMARK["In conjunction with the GSB-reconstruction projection (code 10261) applied to GSB-IRF (code 10260), enables transformation of coordinates between the historic Generalstaben in Bornholm and ETRS89. File is also available in GeoTIFF format (gsb_2022.tif)."]]]