Not exactly an expert when it comes to insulators, but have collected/dealt in early glass for 50+ years (mostly bottles). Here is a gem mint icey aqua wide grooved Mickey Mouse/CD 257. No apologies here. Do not see a chip, crack, scratch, or any other sort of defect. Marked, "Hemingway-60", on the front skirt. "Made in the USA", embossed on the rear skirt. Please look at all my images for the best description. Asking $75 plus exact shipping. PayPal friends and family my preferred form of payment.