I have two Parker 21 caps - both arrow clips, one with the Parker symbol on the bottom of the cap on the back (early '50s style I think). I need a Sheaffer Balance grey pearl striated cap - the humped clip with the flat ball. I also need an Estie J green cap.

I'm flexible on the Estie cap color - a frankenpen cap that goes with green would be acceptable, too. Maybe black or grey?