Roman Centurion Helmet Ancient Low-poly 3D model is available on CGTrader for $30. Original author: Spatneil. Specs: 24056 polys, 13127 verts.
BLEND (Blender, filesize: 14.9 MB), OBJ (OBJ, filesize: 531 KB), FBX (Autodesk FBX, filesize: 13.7 MB), MAX (Autodesk 3ds Max, filesize: 5.45 MB), GLTF (glTF, filesize: 13.6 MB), DAE (Collada, filesize: 841 KB)