$89 Douglas DC-7C United Airlines 3D model by Dreamscape. Available on CGTrader with 163177 polys and 83967 vertices. Geometry: Polygon mesh. Check it out on CGHub.
STL (Stereolithography, filesize: 2.21 MB), OBJ (OBJ, filesize: 2.38 MB), 3DM (Rhinoceros 3D, filesize: 1.56 MB), 3DS (3D Studio, filesize: 828 KB), OTHER (Other, filesize: 2.83 MB), LWO (Lightwave, filesize: 847 KB), DWG (AutoCAD, filesize: 2.08 MB), DXF (DXF, filesize: 2.06 MB), TEXTURES (Textures, filesize: 1.97 MB), MAX (Autodesk 3ds Max, filesize: 1.03 MB)