Finally completely finished this piece.
Not sure if you can tell but all the edges are smoothed out,surface is polished, and it's now one nice flowing continuous line from the center of the spiral out. In a successful composition the eye should wander and if it follows a line it should continue on that course unabated.Nautilus shell,refined: Welded,cold formed,and plasma cut 1/8th inch stainless steel. Overall width at it's widest dimension-12 inches Weight-about 10 lbs.

This is a work in progress. My plan is to create an art piece of the living creature,replete with tentacles,mantle,and eyes in welded silicon bronze.
Believe me when I say it's been a challenge to get this far. That is why I've practiced with simpler and smaller shell forms.(Whelk)