> [ 1, 1000] = Obsolete EPSG/POSC Projection System Codes > [20000, 32760] = EPSG Projection System codes > 32767 = user-defined > [32768, 65535] = Private User Implementations > > But there's a big hole for ]1000,20000[, and 3857 is in it. And even if it > was > in the ...