Steel, sterling, brass, bronze, and solid gold.
Steel.
In gold and nickel plate.
and some black clips, but not many black nibs to match them with –
On the Preston ballpoints
Sterling, brass, bronze, and can be gold plated.. All my sculpted metal parts are now 3d printed in wax and cast in sterling. I’m no longer making these parts by hand.
Sterling snakes
Sterling mountain and waves
Sterling stud roll stopper
And my NN logo on cap rings