This specific 3D model, "Central decor ornament for furniture 3D model 859", is an asset made available by "Unknown author".
You can download this asset for free at "Unknown platform" by following the link.
The license for this digital asset is "Unknown license".
STL (Stereolithography, filesize: 35.1 MB), OBJ (OBJ, filesize: 30.6 MB), FBX (Autodesk FBX, filesize: 47.9 MB)