I had this one stashed away in a box. Just 'recovered' it. Nice blue-aqua color. Embossed on the inner skirt: BOSTON BOTTLE WORKS//PATENT APPLIED FOR this would be EIN [010]. A very neat style of glass insulator! There are several ID tags put on by the previous owners. I tend to leave such tags on insulators. I will add a base/inner skirt view next. Enjoy!