I have a STANDARD available. The insulator is aqua with milky swirling throughout. The colour separation is visible in the photos 3 I have provided. The base lighting was a flashlight. The streak in the center is from the light. This piece has 2 small base chips and 2 base flakes. There is a small rusty scuff on W/G.. The damage does not distract from the unique properties of this gem. Mint it is not. A good tougher piece with lots of sex appeal. I'm asking $50 US. Plus shipping. Cheques MO or PayPal. Thanks. Graham.