PROJCS["ATS77 / MTM Nova Scotia zone 4", GEOGCS["ATS77", DATUM["Average_Terrestrial_System_1977", SPHEROID["Average Terrestrial System 1977",6378135,298.257], EXTENSION["PROJ4_GRIDS","NB7783v2.gsb"]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4122"]], PROJECTION["Transverse_Mercator"], PARAMETER["latitude_of_origin",0], PARAMETER["central_meridian",-61.5], PARAMETER["scale_factor",0.9999], PARAMETER["false_easting",4500000], PARAMETER["false_northing",0], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["EPSG","2294"]]