This free "Classic Window 3D model purchase" 3D asset is currently listed under the authorship of "Unknown author".
Can be downloaded at "Unknown platform" by following the link.
Usage of this 3d asset is subject to the "Unknown license" agreement.
RFA (Autodesk Revit, filesize: 322 KB), FBX (Autodesk FBX, filesize: 199 KB), DWG (AutoCAD, filesize: 104 KB), PDF (PDF, filesize: 10.5 MB), DXF (DXF, filesize: 781 KB)