I don't know what happened to the title and link to this picture I previously posted, but here it is again. Nice light blue aqua (looks green in this photo, see other photo that is not underlit) HG CO 145 just full of fizzy bubbles and the one large distinct bubble placed perfectly in front that is approx. 7/8" x 7/8". This insulator was taken from a stretch of poles removed by RR contractors, see my pics in the "Hunts and Finds" folders for more details. I actually named this insulator "Bubble Baby"... does anyone else out there have pet names for their favorite insulators or am I a complete freak? :-)