3 Glass Insulators Set. Violet Stained Decorative Glass Ships From USA. We create each one of our insulators in our converted 150-year-old Tobacco Barn shop. I call it the bro barn. These are authentic approximately 100-year-old clear glass insulators that we have enhanced with glass stain applied as a spray aerosol. These have been stained in a nice Violet shade. Enhancing glass is a slow, meticulous process that takes time patience and attention to detail. After staining, we then coat each one with a diamond clear coat, giving them UV protection and an added layer of shine and gloss. They catch the sunlight beautifully and look fantastic. If you are not satisfied for any reason with your items, simply reach out to us. We are friendly and we always believe that there is a mutually equitable solution. We always try to ship on the same day. Thank you for considering our listing.