Variable EPSG_54021`Const`

EPSG_54021: "+proj=poly +lat_0=0 +lon_0=0 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs +type=crs" = '+proj=poly +lat_0=0 +lon_0=0 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs +type=crs'

Polyconic