A peculiar color range for Brookfield that evidence suggests lasted long enough to create a definite color group. While this glass can range all the way into a tealy-aqua, it is most often recognized for its unusual yellow-green and bright clarity of glass.

Here we see WBFNY, BFNY, and BF embossed examples, possibly suggesting these molds were all in service at roughly the same time to have made insulators of this odd Brookfield glass.