Curtain 3D model 66 (Polygon mesh 3D model) is available on CGTrader for $7. Original author: karina-e. Specs: 821626 polys, 454569 verts.
OBJ (OBJ, filesize: 33.7 MB), MAX (Autodesk 3ds Max, filesize: 18.3 MB), FBX (Autodesk FBX, filesize: 28.8 MB), TEXTURES (Textures, filesize: 4.21 KB)