This one's got it all! The weird RB, an embossing error on the rear skirt (backwards N in No. 48), a glob of raised glass on the dome top (looks like a number 2 inside of it), and an amber polliwog in the BROOKFIELD embossing. One ping on the skirt to the left of the B (seen in photo), some wire groove rubbing, and a shallow flake off the resting edge of the base for damage show that this old classic saw service somewhere. Asking $17 + shipping to anywhere in the US or Canada, and thanks for looking!