This is one rare (well... rare to me) insulator left by my step grandfather. It is a CD 102 N.W.& B.I.T.CO. The dome is obviously a light purple but the skirt underneath the embossing is pretty much clear. I'm assuming the value is between $200 & $350 according the the Price Guide. I am curious if this could be considered a two-tone insulator. If so, would the value still be the same? Another feature I would like to add is an impression right above the N.W. There is a wavy swirl and then a faint embossing of the N W again. It's almost like the embossing was made and then while the mold was being released, the soft glass brushed up against the mold again leaving the N W mark. Your input on that would also be much appreciated. Thanks for checking out my post!