Well I picked it up along with many a broken applied lip tops (mostly flasks) that day. It was nice to see something whole! Have to take the bad with the good I guess.
Hi Red...Many years ago I worked in a Mould shop making the A/B beer bottle molds as well as others. We did all the machining and sold them to to Foster Forbes and others that I can't remember. I do know at that time the patternmaker (correct name?) was a real work of art creating the embossed...
I dont collect these, but found one buried in mud. I'll attach a pic if anyone is interested. I was wondering where these date in the world of insulators. Brief desc: Round...has a cable notch running across the top.