I'm working on an opalescent window and there are several of this odd, convex border pieces missing and or broken. I know it's a long shot but I am wondering if anyone has any idea of where I could possibly look for replacement pieces.
They measure about 1/4" in width and 1/16" in height.
Any help would be greatly appreciated.
Have you considered fusing something to approximate this look? There are "noodles" made by Uroboros that are the right width, but flatter than your example. The standard size of glass rods from Bullseye and Uroboros might be too wide, especially after they've slumped. But you might have some success in using two layers of fusible thin sheet glass--a 1/4" strip as the base, with a 1/8" strip centered on top. Firing to a full fuse will also provide you with a polished look.