Here's another item that I recently found in the same waterway as the CD 145.6 Boston Bottle Works. This one has the oval blot-out on the back and has tiny milk swirling throughout giving it a jade appearance which is tough to fully capture with a digital camera. Much nicer in person, has a big snot swirl in the threads too. The wider wire groove is kind of different too. Does anyone know who made these? Thanks for looking.