European Speed Limit Sign 2 (Polygon mesh 3D model) is available on CGTrader for $32.5. Original author: Plutonius3d. Specs: 4612 polys, 2322 verts.
STL (Stereolithography, filesize: 424 KB), OBJ (OBJ, filesize: 531 KB), 3DS (3D Studio, filesize: 531 KB), MAX (Autodesk 3ds Max, filesize: 581 KB)