EPSG_5666: "+proj=tmerc +lat_0=0 +lon_0=9 +k=1 +x_0=3500000 +y_0=0 +ellps=bessel +nadgrids=BETA2007.gsb +units=m +no_defs +type=crs" = '+proj=tmerc +lat_0=0 +lon_0=9 +k=1 +x_0=3500000 +y_0=0 +ellps=bessel +nadgrids=BETA2007.gsb +units=m +no_defs +type=crs'
PD/83 / 3-degree Gauss-Kruger zone 3 (E-N)
metre151.56,9.92,50.35,10.5