The same insulator after a good long soak in a strong solution of H2O and HCL, followed by a water soak and thorough cleaning with Soft Scrub and an abrasive sponge. I am always amazed at how the color and internal imperfections jump out at you! The actual color is somewhat more green than the photo, my camera tends to make glass look a bit more blue than it really is. It's the first pennycuick in my humble collection.