For sale i have a "B" embossed insulator with No. 44/3 on the backside. This piece is vnm and in a lovely Teal Blue these book $40-$50 and it has a large open bubble in the back skirt about 2 inches long, can be seen in the pic. Its inner skirt is really tilted with 2 big globs of glass and one smaller one, real character piece. Asking $35.00 U.S. + shipping. I accept PayPal in family friends mode.