This specific 3D model, "Central decor ornament for furniture 3D model 68", is an asset made available by "Unknown author".
Can be downloaded at "Unknown platform" by following the link.
The licensing terms for this digital asset are governed by "Unknown license".
STL (Stereolithography, filesize: 958 KB), OBJ (OBJ, filesize: 966 KB), FBX (Autodesk FBX, filesize: 1.04 MB)