proj4.defs("EPSG:3068","+proj=cass +lat_0=52.4186482777778 +lon_0=13.6272036666667 +x_0=40000 +y_0=10000 +ellps=bessel +towgs84=597.1,71.4,412.1,0.894,0.068,-1.563,7.58 +units=m +no_defs +type=crs");