You know I love door knobs... and all the hardware that goes with them. Keys, frames, the screws, old doors...and more. This is a charcoal with some gold paint added after it was completed to add a metallic antique finish.
It's good to know as an artist, that you can use any medium, any tool, any idea and it is OK ...it is art...your art! Use YOUR creativity and make the art that is in your head! Enjoy!