Light models based on the sea

Handmade models with flush brass rings and brass inserts, length varies based on what I can get out of the material and is just 140mm. The diameter is ~15.8mm. Made without CA glues, joined with threading, and finished only with Renaissance Wax.
This is a turn cap model.

I call them desk pens because of the absence of a clip, and the cap does not go on the post.