CD 138.2 National Insulator Co., base embossed. Blue-aqua. You don't see these for sale often. Classic New England BE piece. There are little swirls of white stuff in the skirt, not enough to justify calling 'junk' but enough to give this piece a little extra character when viewed up close. Small flake on base gets 3 digits of the Oct pat date. A few minor dome nicks. Displays very nicely. Nice see-through glass. $70. Shipping $5 US, $7 CA/Mex/Carrib, $10 EU/Asia/SAm. Shipping discount on multiple items.