Recreate historic vent covers and radiator grilles with laser-cut patterns

https://medium.com/@conaldlhcw/custom-made-smokeshaft-shrouds-in-copper-patina-and-performance-for-standards-526b4c9f1f4b

Recreate historical air vent covers and radiator grilles with laser-cut patterns, after that burnish edges by hand to soften representations and simulate aged workmanship.