Not exactly an expert when it comes to insulators, but have collected/dealt in early glass for 50+ years (mostly bottles). Here's an aqua bullet style CD 133 that's full of cool looking milky swirls!!! 1st couple pictures were taken in my backlit case. Next couple pictures taken submerged (always helps to bring out the junk). I see a BB sized ding above, "Patent", on the front side and a slightly larger ding on the upper skirt on the backside. Marked, "PATENT/DEC 19 1871', on the front crown. A "#3" is embossed on the rear crown. Please look at all my images for the best description. Asking $295 plus exact shipping. PayPal friends and family my preferred form of payment.