Pyrex marigold carnival glass insulator Pristine condition

Excellent condition, Corning Pyrex Marigold Orange Carnival Glass Power Line Insulator. Very Displayable. as it looks like this one was never used. Will make an Excellent addition to your Vintage Glass Insulator collection! No chips, cracks, surface blemishes, scratches, or other known or observed defects. Carnival Glass coloring was added by coating the glass with a proprietary blend of mineral salts (as determined by the end user) at the factory. Carnival Glass coating was purported to add a high degree of resistance to electrical current loss. Marked "PYREX ~ REG. U.S. PAT. OFF." MADE IN USA "63. (There is an "M" above the made in usa 63). ~ Exhibits minimal expected factory glass flow pattern marks. Measures 3 3/4" diameter at skirt base. Tapers to 2 1/4" diameter at top of insulator. Stands 3 1/4" high.