This specific 3D model, "Roof ornement friezes tulip pattern HD model for CNC or Printer 3D print model purchase", is an asset made available by "Unknown author".
Can be downloaded at "Unknown platform" by following the link.
Usage of this 3d asset is subject to the "Unknown license" agreement.
STL (Stereolithography, filesize: 183 MB), OBJ (OBJ, filesize: 493 MB), FBX (Autodesk FBX, filesize: 28.1 MB), 3DS (3D Studio, filesize: 60.9 MB)