Ray... hereabouts Home Depot and other hardware stores often stock screening kits.. the screening, straight pieces of extrusion which you cut to size and then corner pieces that insert. The screen is then placed over the frame and an o-ring type material pressed into the extrusion to hold it in.. Sounds like StormBay had to trim the rather square corners to fit.. it's a good looking result, isn't it?
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)